CVE-2026-90811

LOW 3.3

cosmicstack-labs mercury-agent Shell Permission Manifest permissions.ts PermissionManager.checkShellCommand information disclosure

CVSS Score

3.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-200 CWE-284
Vendor	cosmicstack-labs
Product	mercury-agent
Published	Sep 14, 2026
Last Updated	Sep 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

cosmicstack-labs / mercury-agent

1.0 1.1 1.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/403313 vuldb.com: https://vuldb.com/vuln/403313/cti vuldb.com: https://vuldb.com/cve/CVE-2026-90811 vuldb.com: https://vuldb.com/submit/922877 github.com: https://github.com/cosmicstack-labs/mercury-agent/issues/102 github.com: https://github.com/cosmicstack-labs/mercury-agent/

Credits

🔍 Eric-a (VulDB User) VulDB CNA Team