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CVE-2026-90811— cosmicstack-labs mercury-agent Shell Permission Manifest permissions.ts PermissionManager.checkShellCommand information disclosure

Quick assessment

Affected
cosmicstack-labs mercury-agent
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.

在 cosmicstack-labs 的 mercury-agent（版本 ≤ 1.2.0）中发现了一个安全缺陷。该漏洞影响组件“Shell 权限清单”中文件 的函数 。执行特定操作可能导致信息泄露。该攻击仅限于本地执行环境。利用代码已公开，可被用于发起攻击。项目方此前已通过问题报告得知此问题，但尚未作出回应。

CVSS 3.3 · Low

Affected Version Matrix 3

VendorProduct Version RangeStatus
cosmicstack-labs mercury-agent 1.0 affected
1.1 affected
1.2.0 affected
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I. Basic Information for CVE-2026-90811

Vulnerability Information
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Vulnerability Title
cosmicstack-labs mercury-agent Shell Permission Manifest permissions.ts PermissionManager.checkShellCommand information disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in cosmicstack-labs mercury-agent up to 1.2.0. This affects the function PermissionManager.checkShellCommand of the file mercury-agent/src/capabilities/permissions.ts of the component Shell Permission Manifest. Executing a manipulation can lead to information disclosure. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
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
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
cosmicstack-labs mercury-agent 1.0 cpe:2.3:a:cosmicstack-labs:mercury-agent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90811

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III. Intelligence Information for CVE-2026-90811

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Proof of Concept for CVE-2026-90811 (1)

Other References for CVE-2026-90811 (1)

Same Patch Batch · cosmicstack-labs · 2026-09-14 · 5 CVEs total

CVE-2026-90810 6.3 MEDIUM cosmicstack-labs mercury-agent Shell Command Permission Check permissions.ts PermissionMan
CVE-2026-90814 6.3 MEDIUM cosmicstack-labs mercury-agent GitHub API github.ts githubRequest server-side request forg
CVE-2026-90812 4.3 MEDIUM cosmicstack-labs mercury-agent Shell Command Permission permissions.ts checkShellCommand p
CVE-2026-90813 4.3 MEDIUM cosmicstack-labs mercury-agent Shell Command Execution permissions.ts checkShellCommand va

IV. Related Vulnerabilities

Same product: mercury-agent
Same vendor: cosmicstack-labs
Same weakness: CWE-200

V. Comments for CVE-2026-90811

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