HIGHCVSS 7.1
CVE-2026-55197
CVE-2026-55197 updated by NVD
Summary
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= &messages=1 to retrieve unauthorized conversation transcripts and metadata.
References
Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.
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