CVE-2026-53871

HIGH8.6

Hermes WebUI < 0.51.368 - Profile-Scoped Authorization Bypass via Forged hermes_profile Cookie

Published Jun 17, 2026

Modified 5 days ago

Details

Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the get_profile_cookie() function that accepts unauthenticated profile names from the hermes_profile cookie. An authenticated attacker can forge the hermes_profile cookie value to bypass profile-scoped authorization checks and access sessions, files, and resources across different profiles.

References

FIX

https://github.com/nesquena/hermes-webui/commit/9e96f5f6adf93b6d1e27ebddfb4d2833ca06ff3b

WEB

https://github.com/nesquena/hermes-webui/pull/4023

WEB

https://github.com/nesquena/hermes-webui/pull/4036

WEB

https://github.com/nesquena/hermes-webui/releases/tag/v0.51.368

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-53871

ADVISORY