Files
semantica/tests/explorer
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
..
2026-08-01 19:36:16 +05:30