CVE-2026-90810: cosmicstack-labs mercury-agent Shell Command Permission Check permissions.ts PermissionManager.checkShellCommand improper authorization
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 Software
Event History
Frequently Asked Questions
Which deployments should be considered affected?
Deployments of cosmicstack-labs mercury-agent at version 1.1.13 or earlier should be considered affected based on the available information.
What level of attacker access is required?
The issue can be initiated remotely and requires low privileges. It does not require user interaction.
Is exploitation likely to be practical?
A public exploit has been released and may be used in attacks. The reported severity vector also rates exploit maturity as proof-of-concept.