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CVE-2026-55197

Hermes WebUI < 0.51.443 - Broken Access Control in /api/session Endpoint PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
nesquena / hermes-webuiaffected 0 before 0.51.443; unaffected 0.51.443

CWE

CWE-639

References

ADP enrichment

CISA-ADP

No English description supplied.