CVE-2026-6829

MEDIUM EPSS 17.3%
Published Apr 21, 20262mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 4.0
Medium
Find Similar
Published Apr 21, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

nesquena hermes-webui contains a trust-boundary failure vulnerability that allows authenticated attackers to set or change a session workspace to an arbitrary existing directory on disk by manipulating workspace path parameters in endpoints such as /api/session/new, /api/session/update, /api/chat/start, and /api/workspaces/add. Attackers can repoint a session workspace to a directory outside the intended trusted root and then use ordinary file read and write APIs to access or modify files outside the intended workspace boundary within the permissions of the hermes-webui process.

CVSS Details

Base Score
5.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
17.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

References 4

  • github.com https://github.com/nesquena/hermes-webui/commit/2a7a5ddfaf39e3b0094b7ac37e9f1dbcf40a3918
  • github.com https://github.com/nesquena/hermes-webui/pull/416
  • github.com https://github.com/nesquena/hermes-webui/releases/tag/v0.50.34
  • vulncheck.com https://www.vulncheck.com/advisories/nesquena-hermes-webui-arbitrary-workspace-directory-access

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.