VectorRAG.search() filters with ChromaDB where={"owner": owner}, returning only
documents whose owner equals the requesting user. The keyword fallback
(_keyword_search_fallback, used when the primary query raises) guarded with
`if doc_owner and doc_owner != owner: continue`, so a document with a
missing/empty owner fell through and was returned to whichever user issued the
query — a cross-user information leak on the fallback path.
Match the primary path's strict filter: skip any doc whose owner != the
requested owner, including owner-less docs.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
GET /api/history/{session_id} skips messages whose metadata has `hidden` (e.g.
compaction summaries kept for AI context, not shown to the user) on the
in-memory path. The DB fallback — used when the in-memory history is empty,
e.g. after a restart — built the response from every stored row with no such
filter, so hidden messages leaked to the client on DB-served sessions.
Filter `hidden` out of the response on the DB path too. The rebuilt in-memory
session.history still includes them, so AI context (the compaction summaries)
is preserved.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
_resolve_allowed_personal_dir confined a user-supplied path to PERSONAL_DIR with
os.path.abspath + os.path.commonpath. abspath normalises `..` but does NOT
resolve symlinks, so a symlink placed inside PERSONAL_DIR pointing outside it
passes the commonpath check and lets index_personal_documents read files outside
the root. Use os.path.realpath for both the base and the candidate so symlinks
are resolved before the confinement check.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
