CVE-2026-11322
Hermes WebUI before 0.51.221 Path Traversal via Symlink Workspace Bypass
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.
INFO
Published Date :
June 4, 2026, 10:16 p.m.
Last Modified :
July 22, 2026, 8:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Hermes WebUI to version 0.51.221 or newer.
- Ensure symlink resolutions are validated.
- Restrict access to sensitive files.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-11322.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-11322 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-11322
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-11322 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-11322 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added Translation Title: Hermes WebUI de nesquena, Description: Hermes WebUI anterior a la v0.51.221 contiene una vulnerabilidad de salto de ruta que permite a los atacantes escapar del límite del espacio de trabajo al proporcionar enlaces simbólicos que se resuelven en archivos o directorios fuera de la raíz del espacio de trabajo designada. Los atacantes pueden explotar las API de archivo y listado del espacio de trabajo, que resuelven los destinos de los enlaces simbólicos sin exigir que la ruta final permanezca dentro del espacio de trabajo, para leer archivos de host externos accesibles para el proceso del servidor y divulgar datos sensibles como claves SSH, credenciales de la nube o tokens de aplicación. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'nesquena', 'product': 'Hermes WebUI', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '0.51.221', 'versionType': 'semver'}], 'collectionURL': 'https://github.com/nesquena/hermes-webui', 'defaultStatus': 'unknown'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-11322', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-05T20:06:29.352173Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 05, 2026
Action Type Old Value New Value Added Reference https://github.com/nesquena/hermes-webui/pull/3398 -
New CVE Received by [email protected]
Jun. 04, 2026
Action Type Old Value New Value 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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 Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-59 Added Reference https://github.com/nesquena/hermes-webui/commit/7c48c376299b8058fd35127a59aefadded7e4a92 Added Reference https://github.com/nesquena/hermes-webui/pull/3398 Added Reference https://www.vulncheck.com/advisories/hermes-webui-before-path-traversal-via-symlink-workspace-bypass