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CVE-2026-90810— cosmicstack-labs mercury-agent Shell Command Permission Check permissions.ts PermissionManager.checkShellCommand improper authorization

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（版本最高至 1.1.13）中发现了安全漏洞。受影响的组件是 Shell 命令权限检查（Shell Command Permission Check）中，位于文件 中的函数 。执行相应操作会导致授权不当（improper authorization）。该攻击可远程发起。利用该漏洞的漏洞利用代码（exploit）已公开披露，可用于实际攻击。项目方早前已通过问题报告被通知了此问题，但尚未作出回应。

CVSS 6.3 · Medium

Affected Version Matrix 14

VendorProduct Version RangeStatus
cosmicstack-labs mercury-agent 1.1.0 affected
1.1.1 affected
1.1.2 affected
1.1.3 affected
1.1.4 affected
1.1.5 affected
1.1.6 affected
1.1.7 affected
… +6 more rows
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I. Basic Information for CVE-2026-90810

Vulnerability Information
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Vulnerability Title
cosmicstack-labs mercury-agent Shell Command Permission Check permissions.ts PermissionManager.checkShellCommand improper authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in cosmicstack-labs mercury-agent up to 1.1.13. The impacted element is the function PermissionManager.checkShellCommand of the file mercury-agent/src/capabilities/permissions.ts of the component Shell Command Permission Check. Performing a manipulation results in improper authorization. The attack can be initiated remotely. The exploit has been released to the public and may 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:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
cosmicstack-labs mercury-agent 1.1.0 cpe:2.3:a:cosmicstack-labs:mercury-agent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90810

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III. Intelligence Information for CVE-2026-90810

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Proof of Concept for CVE-2026-90810 (1)

Other References for CVE-2026-90810 (1)

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

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
CVE-2026-90811 3.3 LOW cosmicstack-labs mercury-agent Shell Permission Manifest permissions.ts PermissionManager.

IV. Related Vulnerabilities

Same product: mercury-agent
Same vendor: cosmicstack-labs
Same weakness: CWE-285

V. Comments for CVE-2026-90810

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