CVE-2026-18997

cosmicstack-labs mercury-agent bg agent.ts Agent.handleBgCommand authorization

MEDIUM
6.3
CVSS Score
Published: August 6, 2026 at 04:30 AM UTC
Updated: October 23, 2026 at 09:10 PM UTC
1 product affected across 1 vendorMercury Agent

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/386380
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/386380/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-18997
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/862627

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863CWE-285

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