CVE-2026-6832: high-severity vulnerability in nesquena hermes-webui
Nesquena Hermes WebUI Arbitrary File Deletion via Unvalidated session_id
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.5%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
nesquena · hermes-webuiRelated CVEs — nesquena hermes-webui
In the same product, most dangerous first.
CVE-2026-58123CRITICALHermes WebUI < 0.51.788 Unauthenticated RCE via Terminal APIEPSS 4.6%CVE-2026-49959HIGHHermes WebUI < 0.51.311 RCE via Git Configuration InjectionEPSS 0.9%CVE-2026-49955MEDIUMHermes WebUI < 0.51.270 Resource Exhaustion via passkey/optionsEPSS 0.6%CVE-2026-49973CRITICALHermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settingsEPSS 0.5%CVE-2026-55205MEDIUMHermes WebUI < 0.51.468 - Resource Exhaustion via Unauthenticated OAuth Flow EndpointEPSS 0.5%CVE-2026-58174MEDIUMHermes WebUI < 0.51.521 - Cross-Profile Authorization Bypass via Unset Session Profile on ImportEPSS 0.5%
References
https://github.com/nesquena/hermes-webui/commit/3cc5839bf303fa6758bfdac538507407a2929655https://github.com/nesquena/hermes-webui/pull/409https://github.com/nesquena/hermes-webui/pull/412https://github.com/nesquena/hermes-webui/releases/tag/v0.50.132https://github.com/nesquena/hermes-webui/releases/tag/v0.50.32https://www.vulncheck.com/advisories/nesquena-hermes-webui-arbitrary-file-deletion-via-unvalidated-session-id