Information disclosure in Cosmicstack-Labs Mercury-Agent
CVE-2026-90811
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.
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Cosmicstack-labs Mercury-agent — versions 1.0, 1.1, 1.2.0
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-90811?
- CVE-2026-90811 is a low-severity vulnerability in Cosmicstack-Labs Mercury-Agent, classified under Information Disclosure. CVSS score: 3.3/10. Published 2026-09-14.
- How severe is CVE-2026-90811?
- Low severity. CVSS v3 base score is 3.3 out of 10.