CVE-2026-6832 Details
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.
A vulnerability allowing arbitrary file deletion has been identified in Hermes WebUI, specifically within the '/api/session/delete' endpoint. This issue arises from the acceptance of unvalidated session identifiers, which can be exploited by authenticated attackers to delete files outside the designated session directory. By providing an absolute path or a path traversal payload in the 'session_id' parameter, attackers can bypass the 'SESSION_DIR' boundary and remove writable JSON files from the host system.
Users are advised to update to Hermes WebUI version 0.50.32 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nesquena/hermes-webui/commit/3cc5839bf303fa6758bfdac538507407a2929655 | [email protected] | Patch |
| https://github.com/nesquena/hermes-webui/pull/409 | [email protected] | ExploitIssue TrackingPatchVendor Advisory |
| https://github.com/nesquena/hermes-webui/pull/412 | [email protected] | Issue TrackingPatch |
| https://github.com/nesquena/hermes-webui/releases/tag/v0.50.132 | [email protected] | ProductRelease Notes |
| https://github.com/nesquena/hermes-webui/releases/tag/v0.50.32 | [email protected] | ProductRelease Notes |
| https://www.vulncheck.com/advisories/nesquena-hermes-webui-arbitrary-file-deletion-via-unvalidated-session-id | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| get-hermes hermes web ui | < 0.50.32 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 4, 2026 | Initial Analysis | [email protected] |
| Apr 21, 2026 | New CVE Received | [email protected] |