Medium 6.5Published May 13, 2026

CVE-2026-22677Hermes WebUI < 0.51.44 Path Traversal via Session Import Endpoint

Updated under an hour ago (Oct 26, 2026, 4:40 PM ET)

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It affects nesquena hermes-webui. Add what you run to find out whether that includes you.

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Every CVE for nesquena hermes-webui

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nesquena hermes-webui nesquena:hermes_webui (from the name)	before 0.51.44; f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3 not affected	CNA record

References

References

https://github.com/nesquena/hermes-webui/releases/tag/v0.51.44	release-notes
https://github.com/nesquena/hermes-webui/pull/2048	issue-tracking
https://github.com/nesquena/hermes-webui/commit/f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3	patch
https://www.vulncheck.com/advisories/hermes-webui-path-traversal-via-session-import-endpoint	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.