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CVE-2026-18997— cosmicstack-labs mercury-agent bg agent.ts Agent.handleBgCommand authorization

CVSS 6.3 · Medium

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-18997

Vulnerability Information
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Vulnerability Title
cosmicstack-labs mercury-agent bg agent.ts Agent.handleBgCommand authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in cosmicstack-labs mercury-agent up to 1.1.12. This issue affects the function Agent.handleBgCommand of the file src/core/agent.ts of the component bg Command Handler. Performing a manipulation results in incorrect authorization. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
cosmicstack-labsmercury-agent 1.1.0 cpe:2.3:a:cosmicstack-labs:mercury-agent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18997

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III. Intelligence Information for CVE-2026-18997

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Proof of Concept for CVE-2026-18997 (1)

Other References for CVE-2026-18997 (1)

Same Patch Batch · cosmicstack-labs · 2026-08-06 · 3 CVEs total

CVE-2026-189966.3 MEDIUMcosmicstack-labs mercury-agent run_command permissions.ts PermissionManager.checkShellComm
CVE-2026-189986.3 MEDIUMcosmicstack-labs mercury-agent delegate_task Tool sub-agent.ts SubAgent.run improper autho

IV. Related Vulnerabilities

Same product: mercury-agent
Same vendor: cosmicstack-labs
Same weakness: CWE-863

V. Comments for CVE-2026-18997

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