CVE-2026-18998CWE-266CWE-285

CVE-2026-18998

Medium · published August 6, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
29.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00366 · 29.2th percentile
Weaknesses
CWE-266 · Incorrect Privilege Assignment; CWE-285 · Improper Authorization
Published
2026-08-06T10:16Z
References (7)
https://github.com/cosmicstack-labs/mercury-agent/ · [email protected]https://github.com/cosmicstack-labs/mercury-agent/issues/74 · [email protected]https://vuldb.com/cve/CVE-2026-18998 · [email protected]https://vuldb.com/submit/862628 · [email protected]https://vuldb.com/submit/862629 · [email protected]https://vuldb.com/vuln/386381 · [email protected]https://vuldb.com/vuln/386381/cti · [email protected]
EPSS history
Timeline
  • 06 AUG 04:45Z
    cosmicstack-labs mercury-agent delegate_task Tool sub-agent.ts SubAgent.run improper authorization
    cvelistv5