CVE-2026-22677
MEDIUMHermes WebUI < 0.51.44 - Release T Path Traversal via Session Import Endpoint
Title source: cnaDescription
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.
References (4)
Core 4
Core References
Release Notes release-notes
https://github.com/nesquena/hermes-webui/releases/tag/v0.51.44
Issue Tracking issue-tracking
https://github.com/nesquena/hermes-webui/pull/2048
Patch patch
https://github.com/nesquena/hermes-webui/commit/f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/hermes-webui-path-traversal-via-session-import-endpoint
Scores
CVSS v3
6.5
EPSS
0.0038
EPSS Percentile
29.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (2)
nesquena/hermes-webui
< 0.51.44
nesquena/hermes-webui
f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3
Published
May 13, 2026
Tracked Since
May 14, 2026