What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.3 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 2026-09-15
• Weakness: CWE-266

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.

Affected products

• cosmicstack-labs mercury-agent: 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5 (+8)

References

• https://github.com/cosmicstack-labs/mercury-agent/
• https://github.com/cosmicstack-labs/mercury-agent/issues/101
• https://vuldb.com/cve/CVE-2026-90810
• https://vuldb.com/submit/922876
• https://vuldb.com/vuln/403312
• https://vuldb.com/vuln/403312/cti
• https://vuldb.com/submit/922876

Get alerted when CVE-2026-90810 or the next vulnerability affects your stack