CVE-2026-18998
5.3
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
Summary
A vulnerability was determined in cosmicstack-labs mercury-agent up to 1.1.12. Impacted is the function SubAgent.run of the file src/core/sub-agent.ts of the component delegate_task Tool. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| cosmicstack-labs | mercury-agent | 1.1.0 | affected |
| cosmicstack-labs | mercury-agent | 1.1.1 | affected |
| cosmicstack-labs | mercury-agent | 1.1.2 | affected |
| cosmicstack-labs | mercury-agent | 1.1.3 | affected |
| cosmicstack-labs | mercury-agent | 1.1.4 | affected |
| cosmicstack-labs | mercury-agent | 1.1.5 | affected |
| cosmicstack-labs | mercury-agent | 1.1.6 | affected |
| cosmicstack-labs | mercury-agent | 1.1.7 | affected |
| cosmicstack-labs | mercury-agent | 1.1.8 | affected |
| cosmicstack-labs | mercury-agent | 1.1.9 | affected |
| cosmicstack-labs | mercury-agent | 1.1.10 | affected |
| cosmicstack-labs | mercury-agent | 1.1.11 | affected |
| cosmicstack-labs | mercury-agent | 1.1.12 | affected |
Weaknesses
- CWE-285: Improper Authorization
- CWE-266: Incorrect Privilege Assignment
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/vuln/386381
- https://vuldb.com/vuln/386381/cti
- https://vuldb.com/cve/CVE-2026-18998
- https://vuldb.com/submit/862628
- https://vuldb.com/submit/862629
- https://github.com/cosmicstack-labs/mercury-agent/issues/74
- https://github.com/cosmicstack-labs/mercury-agent/
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