CVE-2026-6832
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.
Weakness
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.
Affected products
- get-hermes hermes_web_ui
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
- https://www.vulncheck.com/advisories/nesquena-hermes-webui-arbitrary-file-deletion-via-unvalidated-session-id
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