{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-55198/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-17T19:30:54.755Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-55198","@id":"https://www.cve.org/CVERecord?id=CVE-2026-55198","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."},"products":[{"@id":"cpe:2.3:a:nesquena:hermes-webui:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:nesquena:hermes-webui:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 0.51.443.","timestamp":"2026-06-17T19:30:54.755Z"}]}