CVE-2026-6832

Description

Hermes WebUI contains an arbitrary file deletion vulnerability in the /api/session/delete endpoint that allows authenticated attackers to delete files outside the session directory by supplying an absolute path or path traversal payload in the session_id parameter. Attackers can exploit unvalidated session identifiers to construct paths that bypass the SESSION_DIR boundary and delete writable JSON files on the host system.

References

• https://github.com/nesquena/hermes-webui/commit/3cc5839bf303fa6758bfdac538507407a2929655
• https://github.com/nesquena/hermes-webui/pull/409
• https://github.com/nesquena/hermes-webui/pull/412
• https://github.com/nesquena/hermes-webui/releases/tag/v0.50.132
• https://github.com/nesquena/hermes-webui/releases/tag/v0.50.32