{"id":"CVE-2026-6832","title":"Nesquena Hermes WebUI Arbitrary File Deletion via Unvalidated session_id","summary":"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 …","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cvssSource":"cna","cwe":["CWE-22"],"vendor":"nesquena","product":"hermes-webui","affected":["hermes-webui < PR #409"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-04-22T17:53:35.836162Z"},"published":"2026-04-21","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:08:15.163Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-6832","references":[{"url":"https://github.com/nesquena/hermes-webui/pull/409","label":"Pull Request"},{"url":"https://github.com/nesquena/hermes-webui/pull/412","label":"Pull Request"},{"url":"https://github.com/nesquena/hermes-webui/commit/3cc5839bf303fa6758bfdac538507407a2929655","label":"Patch Commit"},{"url":"https://github.com/nesquena/hermes-webui/releases/tag/v0.50.132","label":"hermes-webui 0.50.132 Release Notes"},{"url":"https://github.com/nesquena/hermes-webui/releases/tag/v0.50.32","label":"hermes-webui 0.50.32 Release Notes"},{"url":"https://www.vulncheck.com/advisories/nesquena-hermes-webui-arbitrary-file-deletion-via-unvalidated-session-id"}],"tags":["cve.org"],"epss":0.00475,"epssPercentile":0.41333,"ingestedAt":"2026-11-08T14:51:22.263Z","slug":"CVE-2026-6832","body":"## Overview\n\nHermes 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.\n\n## Affected\n\n- `hermes-webui < PR #409`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}