CVE-2026-18998

medium

Description

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.

References

https://vuldb.com/vuln/386381/cti

https://vuldb.com/vuln/386381

https://vuldb.com/submit/862629

https://vuldb.com/submit/862628

https://vuldb.com/cve/CVE-2026-18998

https://github.com/cosmicstack-labs/mercury-agent/issues/74

https://github.com/cosmicstack-labs/mercury-agent/

Details

Source: Mitre, NVD

Published: 2026-08-06

Updated: 2026-08-06

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: 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

Severity: Medium

EPSS

EPSS: 0.00209