CVE-2026-6832: Get-Hermes Hermes Web UI

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

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: before 0.50.32 (fixed in 0.50.32)

Published 2026-04-21. Last modified 2026-06-17.