What’s Vulnerable › Vulnerabilities

CVE-2026-90812: cosmicstack-labs mercury-agent Shell Command Permission permissions.ts checkShellCommand privileges assignment

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-16
• Weakness: CWE-266

Description

A security vulnerability has been detected in cosmicstack-labs mercury-agent up to 1.2.0. This impacts the function checkShellCommand of the file src/capabilities/permissions.ts of the component Shell Command Permission. The manipulation leads to incorrect privilege assignment. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

• cosmicstack-labs mercury-agent: 1.0, 1.1, 1.2.0

References

• https://github.com/cosmicstack-labs/mercury-agent/
• https://github.com/cosmicstack-labs/mercury-agent/issues/80
• https://vuldb.com/cve/CVE-2026-90812
• https://vuldb.com/submit/922878
• https://vuldb.com/vuln/403314
• https://vuldb.com/vuln/403314/cti

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