CVE-2026-22677

Description

Hermes WebUI prior to 0.51.44 - Release T 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 Vector

References

• https://github.com/nesquena/hermes-webui/commit/f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3
• https://github.com/nesquena/hermes-webui/pull/2048
• https://github.com/nesquena/hermes-webui/releases/tag/v0.51.44
• https://www.vulncheck.com/advisories/hermes-webui-path-traversal-via-session-import-endpoint
• https://github.com/nesquena/hermes-webui/pull/2048