GHSA-5wqv-fhmr-pjghHighCVSS 6.5
Hermes WebUI before 0.51.443 contains a broken access control vulnerability in the /api/session...
🔗 CVE IDs covered (1)
📋 Description
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 /api/session?session_id=<foreign_id>&messages=1 to retrieve unauthorized conversation transcripts and metadata.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-55197
- https://github.com/nesquena/hermes-webui/pull/3982
- https://github.com/nesquena/hermes-webui/pull/4269
- https://github.com/nesquena/hermes-webui/commit/2a3baa71b81ca92da8ece8616a09f15894beec71
- https://github.com/nesquena/hermes-webui/releases/tag/v0.51.443
- https://www.vulncheck.com/advisories/hermes-webui-broken-access-control-in-api-session-endpoint
- https://github.com/advisories/GHSA-5wqv-fhmr-pjgh