CVE-2026-18997cosmicstack-labs mercury-agent bg agent.ts Agent.handleBgCommand authorization
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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.
- CVSS
- 6.3 MEDIUM (v3.1, CNA)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
- Weakness (CWE)
- CWE-863, CWE-285
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cosmicstack-labs mercury-agent cosmicstack-labs:mercury-agent | 1.1.0; 1.1.1; 1.1.2; 1.1.3; 1.1.4; 1.1.5; 1.1.6; 1.1.7; and 5 more ranges | CNA record |
References
- https://vuldb.com/vuln/386380vdb-entry, technical-description
- https://vuldb.com/vuln/386380/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-18997third-party-advisory
- https://vuldb.com/submit/862627third-party-advisory
- https://github.com/cosmicstack-labs/mercury-agent/issues/73exploit, issue-tracking
- https://github.com/cosmicstack-labs/mercury-agent/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.