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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-55198

Hermes WebUI < 0.51.443 - Cross-Profile Session Data Exfiltration via Session Export Endpoint

Description

Hermes WebUI before 0.51.443 contains an authorization bypass vulnerability in the session export endpoint that allows authenticated users to access sessions from other profiles. The _handle_session_export handler in api/routes.py fails to verify active-profile ownership before serializing session data, enabling attackers to exfiltrate foreign session transcripts by guessing or knowing session identifiers.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nesquena hermes-webui

Default version status: unaffected

  • 0 to < 0.51.443affected
  • 0.51.443unaffected
pkg:github/nesquena/hermes-webui

References