CVE-2026-18996

Summary

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.

Affected Software

Weaknesses

• CWE-266: Incorrect Privilege Assignment

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://vuldb.com/vuln/386379
• https://vuldb.com/vuln/386379/cti
• https://vuldb.com/cve/CVE-2026-18996
• https://vuldb.com/submit/862625
• https://vuldb.com/submit/862630
• https://vuldb.com/submit/862636
• https://vuldb.com/submit/862637
• https://github.com/cosmicstack-labs/mercury-agent/issues/72
• https://github.com/cosmicstack-labs/mercury-agent/

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