CVE-2026-55197

Hermes WebUI before 0.51.443 contains a broken access control vulnerability in the /api/session endpoint that allows authenticated users to disclose cross-profile session transcripts. Attackers can bypass profile boundary checks by directly querying session IDs belonging to other profiles via GET...

CVE-2026-55197

Hermes WebUI before 0.51.443 has a broken access control weakness in the /api/session endpoint. Authenticated users can bypass profile boundaries and query session IDs from other profiles via GET /api/session?session_id=&messages=1 to retrieve unauthorized transcripts and metadata. This affects t...