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CVE-2026-189986.3MediumCWE-266

CVE-2026-18998: cosmicstack-labs mercury-agent delegate_task Tool sub-agent.ts SubAgent.run improper authorization

cosmicstack-labs · mercury-agent

Affected: cosmicstack-labs mercury-agent · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.4%probability of exploitation in the next 30 days
30th percentile
050100

Higher than 30% of scored CVEs

6.3MediumCVSS 3.1
LowMedium

DescriptionCVE.org

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 products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • cosmicstack-labs · mercury-agent1.1.0; 1.1.1; 1.1.2; 1.1.3; 1.1.4; 1.1.5 and 7 more

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Published
August 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-18998 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References