CVE-2026-11322

MEDIUM

Hermes WebUI before 0.51.221 Path Traversal via Symlink Workspace Bypass

Title source: cna
STIX 2.1

Description

Hermes WebUI prior to v0.51.221 contains a path traversal vulnerability that allows attackers to escape the workspace boundary by supplying symlinks that resolve to files or directories outside the designated workspace root. Attackers can exploit the workspace file and listing APIs, which resolve symlink targets without enforcing that the final path remains within the workspace, to read external host files accessible to the server process and disclose sensitive data such as SSH keys, cloud credentials, or application tokens.

Scores

CVSS v3 6.5
EPSS 0.0032
EPSS Percentile 23.8%
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 poc
Automatable no
Technical Impact partial

Details

CWE
CWE-59
Status published
Products (1)
nesquena/Hermes WebUI < 0.51.221
Published Jun 04, 2026
Tracked Since Jun 05, 2026