CVE-2026-18996
cosmicstack-labs mercury-agent run_command permissions.ts PermissionManager.checkShellCommand privileges assignment
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 6, 2026
- Updated
- Aug 6, 2026
- Reserved
- Aug 5, 2026
Description
A vulnerability has been found in cosmicstack-labs mercury-agent up to 1.1.12. This vulnerability affects the function PermissionManager.checkShellCommand of the file src/capabilities/permissions.ts of the component run_command Handler. Such manipulation leads to incorrect privilege assignment. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-266 Incorrect Privilege Assignment
Affected Products
| Product | Versions |
|---|---|
mercury-agentcosmicstack-labs |
|
References
- VDB-386379 | cosmicstack-labs mercury-agent run_command permissions.ts PermissionManager.checkShellCommand privileges assignmentvdb-entrytechnical-description
- VDB-386379 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-18996 | CVE Analysis and Reportthird-party-advisory
- Submit #862625 | cosmicstack-labs mercury-agent 1.1.12 Incorrect Privilege Assignment (CWE-266)third-party-advisory
- Submit #862630 | cosmicstack-labs mercury-agent 1.1.12 Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) (Duplicate)third-party-advisory
- Submit #862636 | cosmicstack-labs mercury-agent 1.1.12 Incorrect Authorization (CWE-863) (Duplicate)third-party-advisory
- Submit #862637 | cosmicstack-labs mercury-agent 1.1.12 Improper Authorization (CWE-285) (Duplicate)third-party-advisory
- https://github.com/cosmicstack-labs/mercury-agent/issues/72exploitissue-tracking
- https://github.com/cosmicstack-labs/mercury-agent/product
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