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.
History

Fri, 05 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 05 Jun 2026 00:30:00 +0000

Type Values Removed Values Added
First Time appeared Nesquena
Nesquena hermes-webui
Vendors & Products Nesquena
Nesquena hermes-webui

Thu, 04 Jun 2026 22:15:00 +0000

Type Values Removed Values Added
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.
Title Hermes WebUI before 0.51.221 Path Traversal via Symlink Workspace Bypass
Weaknesses CWE-59
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-06-04T21:58:47.308Z

Updated: 2026-06-05T20:06:34.729Z

Reserved: 2026-06-04T21:29:10.986Z

Link: CVE-2026-11322

cve-icon Vulnrichment

Updated: 2026-06-05T20:06:22.377Z

cve-icon NVD

Status : Deferred

Published: 2026-06-04T22:16:52.283

Modified: 2026-06-05T20:17:28.260

Link: CVE-2026-11322

cve-icon Redhat

No data.