CVE-2026-22677
Hermes WebUI < 0.51.44 Path Traversal via Session Import Endpoint
- State
- Published
- Severity
- 6.0 Medium
- Published
- May 13, 2026
- Updated
- Jul 14, 2026
- Reserved
- Jan 8, 2026
Description
Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the workspace field and subsequently use relative paths in the session file API to access any file readable by the WebUI process.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.0 Medium | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
hermes-webuinesquena |
|
References
- https://github.com/nesquena/hermes-webui/releases/tag/v0.51.44release-notes
- https://github.com/nesquena/hermes-webui/pull/2048issue-tracking
- https://github.com/nesquena/hermes-webui/commit/f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3patch
- https://www.vulncheck.com/advisories/hermes-webui-path-traversal-via-session-import-endpointthird-party-advisory
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