CVE-2026-90810

MediumCVSS 6.3

Published: 14/09/2026(UTC)Updated: 15/09/2026(UTC)Translated: 15/09/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.21%

11th percentile - higher than 11% of all known CVEs

Summary

A vulnerability was found in cosmicstack-labs mercury-agent up to 1.1.13, affecting the PermissionManager.checkShellCommand function in mercury-agent/src/capabilities/permissions.ts. Manipulation leads to improper authorization, and the attack can be initiated remotely. The exploit has been publicly disclosed.

Risk Assessment

Improper authorization may allow an attacker to execute unauthorized shell commands, potentially leading to system compromise.

Recommendation

Update mercury-agent to the latest version or apply a patch to restrict access to the permission check function.

Other vulnerabilities in cosmicstack-labs mercury-agent

CVE-2026-90812Medium
A vulnerability was found in cosmicstack-labs mercury-agent up to 1.2.0, affecting the checkShellCommand function in src/capabilities/permissions.ts. Manipulation leads to incorrect privilege assignment, and the attack can be initiated remotely. The exploit has been publicly disclosed.

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS