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CVE-2026-6829— nesquena hermes-webui Arbitrary Workspace Directory Access

Quick assessment

Affected
nesquena hermes-webui
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hermes Web UI是Nathan Esquenazi个人开发者的一个轻量级、暗色主题的自主智能体Web界面。 Hermes Web UI存在路径遍历漏洞，该漏洞源于信任边界失效，允许经过身份验证的攻击者通过操纵/api/session/new、/api/session/update、/api/chat/start和/api/workspaces/add等端点中的workspace路径参数，将会话工作区设置为磁盘上任意现有目录，可能导致攻击者将工作区重定向到预期受信任根目录之外。

CVSS 6.3 · Medium EPSS 0.38% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
nesquena hermes-webui < PR #416 affected
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I. Basic Information for CVE-2026-6829

Vulnerability Information
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Vulnerability Title
nesquena hermes-webui Arbitrary Workspace Directory Access
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Hermes Web UI 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hermes Web UI是Nathan Esquenazi个人开发者的一个轻量级、暗色主题的自主智能体Web界面。 Hermes Web UI存在路径遍历漏洞，该漏洞源于信任边界失效，允许经过身份验证的攻击者通过操纵/api/session/new、/api/session/update、/api/chat/start和/api/workspaces/add等端点中的workspace路径参数，将会话工作区设置为磁盘上任意现有目录，可能导致攻击者将工作区重定向到预期受信任根目录之外。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nesquena hermes-webui 0 ~ PR #416 -

II. Public POCs for CVE-2026-6829

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III. Intelligence Information for CVE-2026-6829

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Patches & Fixes for CVE-2026-6829 (1)

Same Patch Batch · nesquena · 2026-04-21 · 3 CVEs total

CVE-2026-6832 8.1 HIGH Nesquena Hermes WebUI Arbitrary File Deletion via Unvalidated session_id
CVE-2026-6830 3.3 LOW Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch

IV. Related Vulnerabilities

Same product: hermes-webui
Same vendor: nesquena
Same weakness: CWE-22

V. Comments for CVE-2026-6829

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