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THREAT OPS › Threat News › [NVD] CVE-2026-55197 (MEDIUM 6.5) — 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

[NVD] CVE-2026-55197 (MEDIUM 6.5) — 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

lownvdPublished 2026-06-17

CVE-2026-55197 CVSS: 6.5 MEDIUM Published: 2026-06-17T19:18:13.340

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_i

Indicators of compromise

CVE-2026-55197cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-55197