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CVE-2026-6830— Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch

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存在安全漏洞，该漏洞源于配置文件切换时未在加载下一个配置文件前清除先前活动配置文件的环境变量，可能导致攻击者或用户利用累加式dotenv重新加载行为，破坏配置文件之间的预期安全隔离。

CVSS 3.3 · Low EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1552 · Unsecured Credentials

Affected Version Matrix 1

VendorProduct Version RangeStatus
nesquena hermes-webui < PR #351 affected
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I. Basic Information for CVE-2026-6830

Vulnerability Information
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Vulnerability Title
Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch
Source: CVE Program / CVE List V5
Vulnerability Description
nesquena hermes-webui contains an environment variable leakage vulnerability where profile switching does not clear environment variables from the previously active profile before loading the next profile. Attackers or users can exploit additive dotenv reload behavior to access provider API keys and other sensitive secrets from one profile context in another profile, breaking expected security isolation between profiles.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
将资源暴露给错误范围
Source: CVE Program / CVE List V5
Vulnerability Title
Hermes Web UI 安全漏洞
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存在安全漏洞，该漏洞源于配置文件切换时未在加载下一个配置文件前清除先前活动配置文件的环境变量，可能导致攻击者或用户利用累加式dotenv重新加载行为，破坏配置文件之间的预期安全隔离。
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 #351 -

II. Public POCs for CVE-2026-6830

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III. Intelligence Information for CVE-2026-6830

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Patches & Fixes for CVE-2026-6830 (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-2026-6829 6.3 MEDIUM nesquena hermes-webui Arbitrary Workspace Directory Access

IV. Related Vulnerabilities

Same product: hermes-webui
Same vendor: nesquena
Same weakness: CWE-668

V. Comments for CVE-2026-6830

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