Commit Graph
2302 Commits
Author SHA1 Message Date
9ec7959899 Bump fastapi minimum version to fix PYSEC-2024-38 (starlette DoS) (#871)
* security(deps): bump fastapi floor to >=0.109.1 (PYSEC-2024-38)

The [explorer] extra declared fastapi>=0.100.0, which allows the
vulnerable 0.109.0 (PYSEC-2024-38, HTTP response splitting). Raise the
floor to 0.109.1, the patched release. One-line change, no functional
impact -- the 0.109.x API is stable and backward-compatible.

Fixes #869

* fix(deps): bump fastapi to >=0.109.2 and python-multipart to >=0.0.7 for PYSEC-2024-38

PYSEC-2024-38 (CVE-2024-24762 / GHSA-2jv5-9r88-3w3p) is a ReDoS in
python-multipart < 0.0.7: an attacker sends a crafted Content-Type header
that causes catastrophic backtracking in the multipart regex, stalling the
event loop and causing a DoS on any endpoint that parses form data.

The original PR bumped fastapi to >=0.109.1, but that version pins
starlette<0.36.0,>=0.35.0 and cannot install starlette 0.36.2+ (which
contains the fix via python-multipart>=0.0.7). FastAPI 0.109.2 is the
first version that pins starlette>=0.36.3 (verified against PyPI metadata).

Two changes are necessary:
1. fastapi>=0.109.1 -> fastapi>=0.109.2: ensures starlette>=0.36.3 is
   installed as a transitive dependency, which in turn pulls the fixed
   python-multipart>=0.0.7.
2. python-multipart>=0.0.6 -> python-multipart>=0.0.7: closes the direct
   dependency path. python-multipart is listed explicitly in the explorer
   extra, so without this floor a resolver could still install 0.0.6 and
   leave the vulnerability present even with the fastapi bump.

The fix targets only the 'explorer' optional dependency group, which is
the only code surface where FastAPI and form-data parsing are used.
No functional API changes between 0.109.1 and 0.109.2; 239 Explorer tests
pass without modification.

* ci(security): gate pip-audit on explorer-extra dependency PRs, add changelog entry for PYSEC-2024-38

The Security workflow's pip-audit job ran weekly against a bare Python
env with none of Semantica's optional extras installed, and always
continue-on-error'd -- it would never have flagged the vulnerable
fastapi/python-multipart floors this PR fixes, or the first attempt at
the fix that left python-multipart>=0.0.6 in place. security-scan.yml's
Safety check has the same blind spot (only installs [llm-litellm]).

pip-audit now also runs on pull_request when pyproject.toml changes,
installs semantica[all] so it can actually see extras like [explorer],
and fails the build on findings for that trigger. Scheduled/dispatch
runs stay non-blocking pending a full pass over the [all] tree.

Also documents the fix (#871, closes #869) in CHANGELOG.md, including
the correction made during review after the original fastapi-only bump
turned out not to close the vulnerability.

* fix(deps): raise setuptools floor to >=83.0.0 (CVE-2026-59890), harden audit env

The new pull_request pip-audit gate (previous commit) caught this on its
first run: pip install -e ".[all]" resolved setuptools==79.0.1, vulnerable
to CVE-2026-59890 / GHSA-h35f-9h28-mq5c / PYSEC-2026-3447 (Unicode
normalization lets a MANIFEST.in exclude/prune pattern be bypassed on
macOS APFS/HFS+, leaking excluded files into a built sdist). Fixed in
setuptools 83.0.0.

[build-system] requires had the same too-permissive floor this whole PR
is about (setuptools>=61.0). Raised to >=83.0.0. Also upgrade pip/
setuptools explicitly in the Security workflow before running pip-audit,
since [build-system] requires only governs isolated build environments,
not the ambient one actions/setup-python provisions and pip-audit scans.

---------

Co-authored-by: Sameer Kadam <sskadam6305@gmail.com>
Co-authored-by: KaifAhmad1 <kaifahmad087@gmail.com>
2026-08-12 16:32:06 +05:30
Mohd Kaif 22bf581094 Merge pull request #870 from oiahoon/fix/mcp-server-version
fix(mcp): report package version
2026-08-12 14:15:54 +05:30
KaifAhmad1 6328bfe52d docs(changelog): add entry for MCP server version fix (#870, closes #863) 2026-08-12 14:09:40 +05:30
KaifAhmad1 81bb5f2ed8 fix(mcp): report package version in standalone mcp/ server too
semantica/mcp_server/__init__.py was fixed to stop hardcoding 0.4.0,
but the separate top-level mcp/ package (run via `python -m
mcp.server`, documented in mcp/__init__.py as a supported way to
configure Claude Desktop/Windsurf/etc. from a source checkout) still
hardcoded 0.4.0 in three places: mcp/__init__.py, mcp/server.py, and
mcp/resources/registry.py.

Reuses semantica.__version__ directly, matching the pattern just
adopted in semantica/mcp_server/__init__.py, so both implementations
stay in sync with the package version going forward.
2026-08-12 14:07:47 +05:30
Sameer6305 b8e8b2f227 fix(mcp): use semantica.__version__ as authoritative MCP version source
The previous implementation used importlib.metadata.version('semantica') as
the primary version source with a PackageNotFoundError fallback to
semantica.__version__. This caused two of the three new regression tests to
fail in editable/development installs, where dist-info (egg-info) is written
at install time and is not automatically updated on subsequent version bumps.

In this repo, pyproject.toml declares version as a static field (not dynamic),
and semantica/__init__.py maintains __version__ in sync with it by convention.
semantica.__version__ is therefore the authoritative source of truth and is
always present whenever semantica.mcp_server is importable -- the importlib
.metadata indirection adds no value and can return a stale value.

Changes:
- semantica/mcp_server/__init__.py: replace the importlib.metadata try/except
  block with a direct 'from semantica import __version__ as _SEMANTICA_VERSION'
- tests/test_mcp_server_version.py: rewrite tests to assert both MCP version
  surfaces (SERVER_INFO['version'] and semantica://schema/info) against
  semantica.__version__ as the single ground truth; add 0.4.0 regression
  canaries and a cross-surface consistency assertion; remove the mirrored
  importlib.metadata resolution that masked the staleness problem

The root-level mcp/ directory (a separate unpublished companion implementation
not included in the built package) is intentionally left unchanged -- it is
outside the scope of issue #863 which targets the semantica-mcp entry point.
2026-08-12 13:56:02 +05:30
Sameer Kadam f821fa7e2e Merge branch 'main' into fix/mcp-server-version 2026-08-12 13:01:29 +05:30
Mohd Kaif 229cb69c50 Merge pull request #857 from TaherTadpatri/fix/AttributError_in_filter_by_metadata_on_persistent_backend
Added custom _filter_by_metadata for each memory backend
2026-08-12 12:57:54 +05:30
Sameer Kadam 8ef7c9f760 Merge branch 'main' into fix/mcp-server-version 2026-08-12 12:49:31 +05:30
KaifAhmad1 cab995dc97 fix: address code review findings in backend metadata filtering
- pinecone_store: call self.index.describe_index_stats() instead of the
  nonexistent self.describe_index_stats(), and use a unit query vector
  instead of an all-zero vector so filter_by_metadata() works on
  cosine-metric indexes (the library's own default)
- pgvector_store: apply the existing lowercase true/false bool handling
  to the list-filter branch too, and use the jsonb ?| operator so
  list-valued metadata fields match on intersection instead of being
  compared as a single JSON-text blob
- sqlite_vec_store: use json_each() with a json_type guard so list-valued
  metadata fields match on intersection, mirroring the in-memory
  backend's set-intersection semantics
- faiss_store: filter_by_metadata(limit=0) now returns [] instead of one
  result
- milvus_store: reject NaN/Infinity filter values up front with a clear
  ValidationError instead of building an invalid expression that gets
  silently swallowed
- update the #848 FAISS NotImplementedError test to reflect that FAISS
  now implements real filter_by_metadata() (this PR's whole point)
- add regression tests for each fix; sqlite tests run against the real
  sqlite-vec extension
2026-08-12 12:46:23 +05:30
KaifAhmad1 4d88218221 Merge remote-tracking branch 'origin/main' into fix/AttributError_in_filter_by_metadata_on_persistent_backend
# Conflicts:
#	tests/vector_store/test_vector_store.py
2026-08-12 12:22:00 +05:30
918830a821 fix(pipeline): resolve broken import and missing run() in PipelineWithProvenance (#862)
* fix(pipeline): resolve broken import and missing run() in PipelineWithProvenance

Fix two bugs in pipeline_provenance.py:

1. Wrong import path: `from .pipeline import Pipeline` fails because
   `semantica/pipeline/pipeline.py` does not exist. Pipeline lives in
   `pipeline_builder.py`. Fixed to `from .pipeline_builder import Pipeline`.

2. Pipeline dataclass has no run() method. PipelineWithProvenance.run()
   now delegates to ExecutionEngine.execute_pipeline(), which is the
   intended execution path for built pipelines.

Additional changes:
- Constructor now accepts a built Pipeline instance (breaking the previous
  unusable API that tried to instantiate a dataclass with **config).
- Replace deprecated datetime.utcnow() with datetime.now(timezone.utc).
- Add test suite covering import, instantiation, execution, attribute
  delegation, and provenance graceful degradation.

Fixes #858

* test: address Qodo review findings

- Remove redundant test_import_succeeds (module-level import already
  guards against import regression at collection time).
- Fix test_provenance_disabled_when_import_fails to deterministically
  simulate ImportError via sys.modules patch and assert provenance is
  actually toggled off (runner.provenance is False).

* fix(pipeline): update provenance callers for Pipeline API

---------

Co-authored-by: Sameer Kadam <sskadam6305@gmail.com>
Co-authored-by: Russell Jurney <russell.jurney@gmail.com>
2026-08-11 16:49:54 -07:00
Mohd Kaif 5b319560fb chore: bump version to 0.6.5 (#918)
Security release bundling fixes for GHSA-j4mq (missing auth), GHSA-8c7v
(SSRF via redirect bypass), GHSA-482h (Cypher injection), GHSA-8vgg
(SPARQL injection), GHSA-4643 (WebSocket Origin validation), and a
CodeQL-flagged ReDoS in the SPARQL route validator.
v0.6.5
2026-08-11 22:41:19 +05:30
Mohd KaifandSameer Kadam f29c4310a1 security: validate WebSocket Origin against the CORS allowlist (GHSA-4643) (#917)
CORSMiddleware doesn't cover WebSocket handshakes at all (Starlette's CORS
support only wraps HTTP), so under SEMANTICA_ALLOW_ANONYMOUS=true --
the mode docker-compose.dev.yml ships -- is_valid_api_key's anonymous
bypass accepted a /ws/graph-updates connection from any origin. Loopback
binding isn't a boundary against a browser: any page the operator has
open can still reach ws://localhost:8000/ws/graph-updates directly, and
ConnectionManager.broadcast sends every graph_mutation to every
connected socket with no per-connection scoping. Combined with
/api/import accepting multipart/form-data (a CORS-safelisted content
type that skips preflight), a hostile page could write to the graph
over REST and read the result back over the unauthenticated WebSocket
-- demonstrated end-to-end in the report with a real client.

Not affected: any deployment with SEMANTICA_API_KEY configured -- the
handshake already rejects without a valid key in that mode. This is an
anonymous-mode-only, development-configuration exposure.

Fix: check the handshake's Origin header against
app.state.explorer_settings['allowed_origins'], the same list
CORSMiddleware already enforces for HTTP, before the key check. A
missing Origin (native/CLI clients, which never set the header --
only browsers do) is still allowed through, since the browser is the
only threat this closes.

4 new tests in test_explorer_auth.py: hostile Origin rejected under
anonymous mode; hostile Origin rejected even with a correct key
(Origin is checked before the key, so a leaked key alone can't
hijack the socket); an allowlisted Origin still connects under
anonymous mode; a missing Origin still connects under anonymous mode
(native clients keep working). Full explorer suite: 226 passed.

Co-authored-by: Sameer Kadam <sskadam6305@gmail.com>
2026-08-11 22:11:17 +05:30
Mohd Kaif a2886a4e41 Merge pull request #916 from semantica-agi/security/ssrf-dns-pinning-and-object-iri
security: DNS check-then-use pinning for SSRF fetcher, close object-IRI gap
2026-08-11 21:36:42 +05:30
Sameer Kadam a0aa415fc4 Merge branch 'main' into security/ssrf-dns-pinning-and-object-iri 2026-08-11 20:49:18 +05:30
Mohd Kaif ae4f1d4030 Merge pull request #915 from Sameer6305/fix/redos-prefix-decl-regex
fix: resolve ReDoS in _PREFIX_DECL regex (CodeQL py/polynomial-redos #1897)
2026-08-11 19:56:57 +05:30
KaifAhmad1 ea3416ed32 fix: enforce a definitive no-proxy policy for the pinned SSRF fetcher
Qodo's re-review confirmed the multi-IP fallback fix but kept the proxy
finding open: logging-and-falling-back when a proxy applies still let
the DNS-pinning protection be silently skipped under proxy
configuration, rather than enforcing a clear policy either way.

Implemented Qodo's preferred option: proxies are now disabled outright
for this SSRF-sensitive fetcher via session.trust_env = False, so
HTTP_PROXY/HTTPS_PROXY/NO_PROXY env vars are never consulted in the
first place (a configured proxy would perform its own DNS resolution
of the target host outside this process's control, reopening the
DNS check-then-use race pinning exists to close). The adapter also
keeps a fail-closed backstop: if a proxy is somehow still configured
despite trust_env=False (e.g. set explicitly by future code), it now
raises a clear 502 instead of silently connecting through the proxy
unpinned.

_validate_fetch_url's destination classification (blocking private/
internal targets) is unaffected either way — it runs before any of
this and doesn't depend on proxy configuration.

4 new tests: trust_env is disabled on every pinned session; an
HTTP_PROXY env var pointed at an address that would fail if contacted
is confirmed genuinely unused (real local-server fetch still succeeds
directly); and the fail-closed backstop actually raises when a proxy
is forced onto the session. Full explorer + triplet_store suite: 572
passed.
2026-08-11 19:16:29 +05:30
KaifAhmad1 154a7347cd fix: address CI/review findings on DNS pinning (multi-IP fallback, TLS min version)
Four findings from PR #916's automated review, all addressed:

- CodeQL (HIGH): the test HTTPS server's SSLContext allowed TLSv1/TLSv1.1
  by not setting a minimum version. Added
  ssl_ctx.minimum_version = ssl.TLSVersion.TLSv1_2.
- github-code-quality: unused `cryptography` local in
  _make_self_signed_cert — importorskip's return value was never used.
- Qodo (reliability): _validate_fetch_url() only returned the first
  validated IP, and _make_pinned_session() pinned to just that one
  address, so a fetch would fail outright if the first-returned A/AAAA
  record happened to be unreachable even though a later one would work.
  _validate_fetch_url() now returns every validated IP (deduplicated,
  in resolution order); _make_pinned_session() takes the full list and
  falls back through each one via a custom Connection._new_conn
  override, matching the fallback behavior a normal DNS-resolving
  connection would already get for free. Verified with a real test:
  pin to an unreachable loopback address followed by a real one, confirm
  the fetch still succeeds by falling back; and a real test confirming
  it still raises (rather than silently re-resolving the hostname) when
  every pinned address is unreachable.
- Qodo (security): when an HTTP(S) proxy applies, the adapter falls back
  to the unpinned path rather than pinning. This is a real, but
  architecturally unavoidable, limitation from the client side: for a
  forward proxy, the *proxy* performs its own DNS resolution of the
  target host on the application's behalf, a resolution this process
  has no visibility into or control over — there's no client-side pin
  that closes that race. _validate_fetch_url's destination
  classification still fully applies either way; only the secondary
  DNS-pinning hardening doesn't extend through a proxy. Added an info
  log when this fallback path is taken so it's observable rather than
  silent, and expanded the code comment to make the reasoning explicit
  for the next reader/reviewer rather than looking like an oversight.

Tests: 3 new tests in test_ontology_dns_pinning.py (multi-IP fallback
success, all-unreachable failure, deduplicated multi-record resolution).
Full explorer + triplet_store suite: 569 passed.
2026-08-11 19:10:01 +05:30
KaifAhmad1 f2f1d6787d docs(changelog): add PR #916 (DNS pinning + object-IRI gap) entry 2026-08-11 18:57:07 +05:30
KaifAhmad1 646c70ce63 security: DNS check-then-use pinning for SSRF fetcher, close object-IRI gap
Two follow-up hardening items flagged as secondary/deferred during
GHSA-8c7v-62gr-hj6g and GHSA-8vgg-8mr4-r236's fixes:

1. DNS check-then-use (TOCTOU) window in the ontology URL fetcher.
   _validate_fetch_url() resolved and validated a hostname once, but
   _fetch_url_sync() then let requests resolve the same hostname again
   independently at connect time — a low-TTL or rebinding DNS answer
   could differ between the two lookups, reopening the SSRF window the
   validation exists to close.

   _validate_fetch_url() now returns the validated IP, and a new
   _make_pinned_session() builds a per-hop requests.Session whose
   connection pool is pinned directly to that IP (bypassing DNS
   resolution for the connection entirely), while explicitly restoring
   the real hostname as the outgoing HTTP Host header and, for HTTPS,
   the TLS SNI server_hostname/assert_hostname — so the connection
   reaches the validated IP but still presents (and is verified
   against) the real hostname's identity, keeping virtual hosting and
   certificate validation correct.

   Note: an earlier version of this fix set `_dns_host` post-construction
   assuming it was decoupled from `host`, matching some other urllib3
   releases; in the installed version (2.7.0), `host` is a property
   that reads/writes `_dns_host` directly, so that approach silently
   changed the Host header too. Verified with a real (non-mocked) local
   HTTP server, a real local HTTPS server with a self-signed cert
   (proving SNI/cert-hostname verification checks the real hostname,
   not the pinned IP), and a negative control confirming a hostname/cert
   mismatch is still correctly rejected — not silently bypassed.

2. Pre-wrapped object IRIs skipped full validation in
   _format_object_for_sparql/_format_object_for_ntriples (Blazegraph,
   RDF4J). A triplet object already wrapped in `<...>` only had its
   inner content checked for a literal space or `>`, not run through
   sparql_escaping.validate_uri() like the unwrapped-object branch —
   flagged by automated review during GHSA-8vgg-8mr4-r236's fix. Both
   branches now validate identically.

Tests: tests/explorer/test_ontology_dns_pinning.py (6 tests, including
2 real local-server end-to-end checks and 2 real-TLS checks with a
generated self-signed cert, gracefully skipped if `cryptography` isn't
installed); updated tests/explorer/test_ontology_ssrf.py for the new
per-hop session construction; 4 new tests in
tests/triplet_store/test_sparql_injection.py for the object-IRI fix.
Full explorer + triplet_store suite: 566 passed.
2026-08-11 18:52:26 +05:30
Sameer6305 c5981aa306 fix: address qodo review findings on _PREFIX_DECL and query-length guard
Two follow-up fixes to the initial ReDoS patch (CodeQL py/polynomial-redos
#1897), raised during code review:

--- Fix 1: _PREFIX_DECL regression — inline prologues and CRLF (#review-1) ---

The first ReDoS fix replaced the ambiguous trailing \s* with [ \t]*(?:\n|$),
but that introduced a behavioral regression:

  * Inline prologues — PREFIX ex: <...> SELECT ... on a single line were no
    longer stripped because the mandatory (?:\n|$) anchor never matched when
    non-whitespace content followed the IRI on the same line.
  * CRLF line endings — PREFIX ex: <...>\r\n failed because \r is not in
    [ \t]* and the anchor expected a bare \n.

Root cause: the end-of-line anchor was unnecessary; the only thing needed
to eliminate backtracking ambiguity is ensuring the IRI body character class
and the trailing whitespace quantifier are disjoint.

Fix: change the IRI body from <[^>]*> to <[^>\r\n]*>, which:
  - excludes CR and LF from the IRI match (semantically correct — SPARQL
    IRIs cannot span line boundaries)
  - makes [^>\r\n]* and the trailing [ \t]* have zero character overlap,
    eliminating all backtracking ambiguity without any end-of-line anchor

No anchor is used, so both inline prologues and CRLF/LF endings work
naturally. ReDoS payloads (base< + !< x 10,000) still complete in <1 ms.

--- Fix 2: oversized-query length guard obscured error (#review-2) ---

The initial patch placed the _SPARQL_MAX_QUERY_LEN guard inside
_is_read_only_query(), which caused execute_sparql() to return the same
generic 'Only SELECT' error for both genuinely disallowed query types and
oversized inputs. Clients could not distinguish the two rejection reasons.

Fix: move the length check out of _is_read_only_query() and into
execute_sparql() as an explicit early gate, alongside the other resource
limits (_SPARQL_MAX_ROWS, _SPARQL_MAX_GRAPH_NODES). Oversized queries now
return a specific message naming the limit, the received length, and the
remediation step. _is_read_only_query() is documented to be length-agnostic.
_SPARQL_MAX_QUERY_LEN is relocated to the resource-limits block with the
other constants.

--- Tests added ---

tests/test_security_regression.py:
  - test_inline_prefix_before_select_allowed   (Fix 1 regression)
  - test_crlf_line_endings_with_prefix         (Fix 1 regression)
  - test_crlf_multiple_prefixes_then_select    (Fix 1 regression)
  - test_inline_prefix_before_insert_still_blocked (Fix 1 security check)
  - test_long_valid_query_not_rejected_by_is_read_only (Fix 2 separation)

tests/explorer/test_sparql_route.py:
  - test_oversized_query_returns_distinct_length_error (Fix 2 error message)
  - test_oversized_query_never_touches_the_graph       (Fix 2 short-circuit)
  - test_query_exactly_at_length_limit_is_accepted     (Fix 2 boundary)

All 82 tests pass.
2026-08-11 18:37:50 +05:30
Sameer6305 d507fda1b0 fix: resolve ReDoS in _PREFIX_DECL regex (CodeQL #1897)
The _PREFIX_DECL pattern used \s* as a trailing quantifier after
<[^>]*>. On inputs that start with ase< but contain no closing >
(e.g. ase<!<<!<<!<...), the regex engine explores exponentially many
ways to split the match between [^>]* and \s*, causing polynomial
backtracking against user-controlled SPARQL query input.

Fix:
- Replace ^\s* / \s+ / \s* with ^[ \t]* / [ \t]+ / [ \t]*
  so the leading/internal whitespace quantifiers only match horizontal
  whitespace (no overlap with the <[^>]*> IRI part).
- Replace the ambiguous trailing \s* with [ \t]*(?:\n|$), which
  matches only horizontal whitespace followed by a hard line boundary.
  [^>]* and [ \t]* have disjoint character sets, eliminating the
  backtracking ambiguity entirely.
- Add _SPARQL_MAX_QUERY_LEN = 10_000 guard at the top of
  _is_read_only_query as defence-in-depth: rejects oversized input
  before any regex work, bounding worst-case cost even if a future
  pattern change reintroduces ambiguity.

Verified: ReDoS payload ase< + !< x 5000 completes in <1 ms.
Normal PREFIX/BASE stripping and read-only query detection unchanged.

Fixes: CodeQL py/polynomial-redos alert #1897
CWE: CWE-1333, CWE-730, CWE-400
2026-08-11 18:05:29 +05:30
Mohd Kaif 7bf7474ac1 Merge pull request #911 from semantica-agi/security/sparql-injection
security: validate triplet IRIs before SPARQL interpolation (GHSA-8vgg)
2026-08-11 16:41:16 +05:30
KaifAhmad1 546e27cec5 Merge remote-tracking branch 'origin/security/sparql-injection' into security/sparql-injection 2026-08-11 16:30:33 +05:30
KaifAhmad1 a8330874d3 Merge remote-tracking branch 'origin/main' into security/sparql-injection
# Conflicts:
#	CHANGELOG.md
2026-08-11 16:29:39 +05:30
Sameer6305 1c3ac66fd9 fix(rdf4j): preserve literal objects in delete_triplet 2026-08-11 16:27:52 +05:30
Mohd KaifandSameer6305 b846ff88d4 security: sanitize Cypher labels/relationship types/property keys (GHSA-482h) (#910)
* security: sanitize Cypher labels/relationship types/property keys (GHSA-482h-hw99-h62p)

Node labels and property keys passed to create_node/create_relationship
were interpolated directly into Cypher strings in the Neptune, Neo4j, and
FalkorDB graph stores. Property values are parameterized, but labels and
keys can't be bound as parameters, and nothing validated them, so a
document-derived entity type or property name could close the current
Cypher token early and append arbitrary statements (e.g. DETACH DELETE),
running with the application's database credentials.

- New shared semantica/graph_store/query_sanitize.py: sanitize_identifier()
  generalizes age_store.py's existing _sanitize_label/_sanitize_rel_type
  (the only backend that already validated this) into a helper the other
  backends can import without an import cycle with graph_store.py/methods.py.
- Applied at every label/relationship-type/property-key interpolation site
  in amazon_neptune.py, neo4j_store.py, falkordb_store.py, graph_store.py
  (degree_centrality's own query builder), and methods.py
  (update_relationship's own query builder) — create_node, create_nodes,
  create_relationship, get_nodes, get_relationships, get_neighbors,
  shortest_path, update_node, create_index, and all relationship-type
  filters.
- depth/max_depth path-length parameters are also cast to int before
  interpolation as defense-in-depth (they're already typed int, but
  Python doesn't enforce that at runtime).

Added tests/graph_store/test_cypher_injection.py (12 tests covering the
sanitizer directly and reproducing the advisory's injection payload
against Neptune/Neo4j/FalkorDB create_node/create_relationship — asserts
the malicious query is never built or sent), plus regression tests for
graph_store.py's degree_centrality and methods.py's update_relationship.
Full graph_store test suite (224 tests) passes with no regressions.

* fix(graph-store): prevent depth-based Cypher injection

* test(graph-store): tighten injection regression assertions

* docs(changelog): add PR #910 (GHSA-482h Cypher injection) entry

---------

Co-authored-by: Sameer6305 <sskadam6305@gmail.com>
2026-08-11 16:24:28 +05:30
KaifAhmad1 69b79e3d67 docs(changelog): add PR #911 (GHSA-8vgg SPARQL injection) entry 2026-08-11 16:19:06 +05:30
KaifAhmad1 9012492c97 Merge remote-tracking branch 'origin/main' into security/sparql-injection 2026-08-11 16:18:20 +05:30
Mohd Kaif 6ec546b551 Merge pull request #898 from Sunil56224972/security/fix-critical-vulnerabilities
security: fix 4 critical vulnerabilities (RCE, SSRF, XXE, DoS)
2026-08-11 15:50:06 +05:30
KaifAhmad1 6002965c55 docs(changelog): document PR #898's full scope, including the maintainer follow-up fixes 2026-08-11 15:39:11 +05:30
KaifAhmad1 abc10bc8e0 fix(security): restore GHSA-j4mq auth enforcement, fix SPARQL comment-regex bug
Two issues in the last round of commits:

1. explorer/auth.py added a new, opt-in APIKeyAuthMiddleware
   (EXPLORER_API_KEY) and wired it into create_app(), but in doing so
   removed the Depends(require_auth) dependency from every router and
   deleted the /ws/graph-updates handshake check entirely. The new
   middleware also fails OPEN (allows all requests) when its key is
   unset, the opposite of require_auth's fail-closed design. Since
   GHSA-j4mq-hprp-987v (the unauthenticated-Explorer-API advisory) is
   already merged into main via require_auth, this would have reverted
   a merged Critical fix the moment this branch merges. Removed
   explorer/auth.py, restored the per-router dependencies and the
   WebSocket auth check. Kept auth.py's one genuine improvement (adding
   X-API-Key to the CORS allow_headers list) by folding it into the
   existing CORS middleware config.

2. sparql.py's new _is_read_only_query() hardening (comment/PREFIX
   stripping + forbidden-keyword scan) used `#[^\n]*` to strip SPARQL
   comments, but a bare '#' also appears inside standard RDF namespace
   IRIs (e.g. ".../1999/02/22-rdf-syntax-ns#") — the regex struck
   everything after that '#' as a "comment", corrupting the query and
   rejecting any legitimate SELECT using rdf:/rdfs:-style PREFIX
   declarations. Confirmed by the fact the new hardening's own inlined
   test copy failed against two of its own cases. Fixed by only
   treating '#' as a comment-start at line-start or after whitespace,
   which distinguishes ".../ns#" (preceded by a word character) from an
   actual comment (preceded by whitespace/newline in every realistic
   case, including the attacker's own comment-hiding PoC). Also fixed
   the companion PREFIX/BASE regex, which required a prefix-name token
   between the keyword and the IRI even for bare `BASE <...>`
   declarations (which have none).

tests/test_security_regression.py's SPARQL section now imports the real
_is_read_only_query instead of maintaining a parallel inlined copy that
had silently drifted from — and shared the same bug as — the real
implementation; removed its TestAPIKeyAuth class (tested the now-deleted
auth.py) since equivalent, more thorough coverage already exists in
tests/explorer/test_explorer_auth.py. Updated tests/explorer/test_sparql_route.py's
multi-statement-injection test to reflect that the keyword scan now
catches "SELECT ... ; DROP ALL" itself rather than relying on rdflib's
parser, and added a new test confirming the parser still catches
multi-statement syntax that doesn't contain any forbidden keyword.

Full explorer/vector_store/security-regression/age_store suite: 543
passed (the only failures are 6 pre-existing, unrelated Pinecone-client
mocking issues).
2026-08-11 15:36:49 +05:30
Sunil 44f585ffce test(security): add regression tests for all security fixes 2026-08-11 15:17:23 +05:30
Sunil f5332589d5 fix(security): harden SPARQL read-only check against comment/prefix bypass 2026-08-11 15:17:21 +05:30
Sunil 9a21ca9834 fix(security): prevent Cypher injection via graph_name and dollar-delimiter breakout 2026-08-11 15:17:19 +05:30
Sunil a169cf3fb9 feat(security): wire API key auth middleware into Explorer app 2026-08-11 15:17:17 +05:30
Sunil 656baa7aee feat(security): add opt-in API key auth middleware for Explorer API 2026-08-11 15:17:15 +05:30
KaifAhmad1 e1725fd763 fix(ontology): close the final (non-redirect) response in _fetch_url_sync
The previous rework of the redirect loop closed the response on each
redirect hop but dropped the try/finally around the success path, so the
terminal response (the one actually read and returned) was left
unclosed, leaking the connection back to the pool unclosed under load.
2026-08-11 15:11:07 +05:30
Zohaib Hassnain 1f053e005c fix object injection and test flakiness 2026-08-11 14:40:49 +05:00
Mohd Kaif 7ed1d49625 Merge branch 'main' into security/fix-critical-vulnerabilities 2026-08-11 15:05:45 +05:30
Sunil c94be3f9a6 fix(ontology): resolve relative redirects with urljoin, close resp on redirect 2026-08-11 15:01:34 +05:30
Sunil 142707db93 fix(sparql): wrap graph cap ValueError in SparqlResponse instead of 500 2026-08-11 15:01:31 +05:30
Sunil 3357c14ee3 fix(vector_store): use v.tolist() for numpy array serialization 2026-08-11 15:01:29 +05:30
KaifAhmad1 9ecae47a8a security: validate triplet IRIs before SPARQL interpolation (GHSA-8vgg-8mr4-r236)
Triplet.subject and Triplet.predicate (and, in some builders, .object)
were interpolated directly into SPARQL update/query strings in the
Blazegraph and RDF4J stores, and into a SELECT filter in the Jena store.
A subject containing '>' closes the '<...>' IRI token early, so the rest
of the value is parsed as more SPARQL. Entity names are document text in
the normal ingest pipeline, so anyone whose content gets processed could
append operations like CLEAR ALL, running with the application's store
credentials.

Applied the existing sparql_escaping.validate_uri (already used by
anzo_store.py, the one backend that was already hardened) at every
subject/predicate/object interpolation site:

- blazegraph_store.py: _build_insert_data, _triplets_to_rdf (unreachable
  dead code today but same fix applied for consistency/future-proofing),
  bulk_load's graph option, get_triplets's filter, delete_triplet.
- rdf4j_store.py: _triplets_to_ntriples, get_triplets's filter,
  delete_triplet. (add_triplets's graph option was already validated.)
- jena_store.py: get_triplets's filter — the only vulnerable site;
  add_triplets/delete_triplet already use rdflib's native Python API
  (Graph.add/.remove with URIRef) rather than building query strings, so
  they were never exploitable this way.

Added tests/triplet_store/test_sparql_injection.py (12 tests) reproducing
the advisory's own injection payload against all three backends' write
and read paths, asserting the malicious query is never built or sent.
Full triplet_store suite (330 tests) passes with no regressions.

Note: while adding read-path test coverage, found that jena_store.py's
get_triplets() WHERE-clause filter syntax is malformed SPARQL (missing a
FILTER()/separator before the equality conditions) — a pre-existing
correctness bug unrelated to this fix, worth a separate follow-up.
2026-08-11 14:58:40 +05:30
Mohd KaifandZohaib Hassnain 3496d62335 security: require API-key auth on all Explorer API routes (GHSA-j4mq) (#909)
* security: require API-key auth on all Explorer API routes (GHSA-j4mq-hprp-987v)

Every Explorer route (bulk import/export, delete, LLM-backed ontology
generation, SPARQL, etc.) was mounted with no authentication, and both
server entrypoints bind 0.0.0.0 by default. Anyone reaching the port got
full read/write/delete on the graph.

- Add require_auth dependency (explorer/dependencies.py): checks
  X-API-Key against SEMANTICA_API_KEY, fails closed with 503 if
  unconfigured (not silently anonymous), 401 on wrong/missing key.
  SEMANTICA_ALLOW_ANONYMOUS=true opts out explicitly for local dev.
- Wire dependencies=[Depends(require_auth)] into all 11 API routers in
  both explorer/app.py and server.py. /health, /api/info, static assets,
  and the SPA catch-all stay public.
- /ws/graph-updates handshake now checks the same key via header or
  ?api_key= query param (browsers can't set custom WS headers) before
  accepting the connection.
- Default bind changed from 0.0.0.0 to 127.0.0.1 in server.py's main()
  and cli.py's `server start`; the CLI warns if a non-loopback host is
  passed explicitly without a key configured.
- Startup logging reports the resolved auth mode in both app factories.
- Document/generate SEMANTICA_API_KEY in the deploy recipes that expose
  a public endpoint by default: docker-compose, Railway, Fly, Render.

Added tests/explorer/test_explorer_auth.py covering fail-closed default,
wrong/missing/correct key, anonymous opt-in, public-route exemptions, and
the WS handshake. Added tests/explorer/conftest.py defaulting the
pre-existing ~200 explorer tests to SEMANTICA_ALLOW_ANONYMOUS=true so
they keep exercising route logic without needing a key.

* fix CORS

---------

Co-authored-by: Zohaib Hassnain <109234410+ZohaibHassan16@users.noreply.github.com>
2026-08-11 14:05:00 +05:00
pravit-ampandPravit Ampapathini 64f6c5cba2 test(split): cover untested chunker classes (#864) (#904)
* test(split): add coverage for untested chunker classes

* test(split): address Qodo gaps for chunker coverage

Cover exported KG/structural/sliding-window helpers, assert heading
boundaries, and use importorskip instead of mocking optional deps.

* fix(split): normalize sliding-window stride when omitted

* fix(split): pass entities to relation extraction and harden graph-based tests

---------

Co-authored-by: Pravit Ampapathini
2026-08-11 14:00:40 +05:00
pravit-ampandPravit Ampapathini ab5c12f9af fix(ingest): SSRF protection for Web and API ingestors (#867) (#906)
* fix(ingest): add SSRF protection for WebIngestor and RESTIngestor

Block non-http(s) schemes and private/loopback/link-local targets before
outbound requests, with allow_private_ips opt-in for trusted deployments.

* fix(ingest): fail closed on SSRF DNS resolution errors

* fix(ingest): validate SSRF targets on every HTTP redirect hop

* fix(ingest): avoid blocking on SSRF DNS executor shutdown

* fix(ingest): parse allow_private_ips without truthy-string pitfalls

* docs(ingest): clarify robots.txt SSRF/validation comment

---------

Co-authored-by: Pravit Ampapathini
2026-08-11 13:52:15 +05:00
Mohd Kaif fc9af2ebf8 Merge branch 'main' into security/fix-critical-vulnerabilities 2026-08-11 14:04:08 +05:30
KaifAhmad1 3e9ba1b7fb fix: address Qodo review findings on security PR (numpy/JSON, relative redirects, SPARQL 500)
- vector_store.save(): use v.tolist() instead of list(v) so numpy float32
  vectors round-trip through JSON instead of raising TypeError.
- ontology._fetch_url_sync(): resolve relative Location headers via urljoin
  before re-validating (previously any relative redirect was rejected
  outright), and close every response instead of leaking the connection
  across redirect hops.
- sparql.execute_sparql(): move _build_rdflib_graph inside the handler's
  error handling so the graph-size cap returns a clean SparqlResponse
  error instead of an unhandled 500.
- add regression tests for all three.
2026-08-11 14:01:07 +05:30
pravit-ampandPravit Ampapathini 51cf97765d test(deduplication): cover ClusterBuilder, MergeStrategyManager, and batch paths (#907)
* test(deduplication): cover ClusterBuilder, MergeStrategyManager, and batch paths
Add focused coverage for union-find clustering, property merge rules,
merge_duplicates, embedding similarity, and incremental detection (#866).

* test(deduplication): assert unrelated clusters without conditional skip
Make cluster-separation coverage fail closed by using mocked pairs and
unconditional assertions for distinct Apple vs Microsoft cluster IDs.

* test(deduplication): tighten update_clusters attachment assertions
Require the incremental path to place the new near-duplicate in the
same rebuilt cluster instead of accepting a vacuous cluster-count check.

* test(deduplication): strengthen incremental detect_duplicates wrapper checks
Assert real DuplicateCandidate matches, score threshold, and new×existing
routing instead of only checking that the wrapper returns a list.

* test(deduplication): verify metadata provenance behavior

Assert that preserve_provenance writes metadata.provenance fields and add a disabled-path test so regressions do not pass through merge_entities metadata alone.

---------

Co-authored-by: Pravit Ampapathini <pravitampapathini@users.noreply.github.com>
2026-08-11 12:52:15 +05:00