CVE-2026-79623: Fishcodetech Muteki

Medium severity, CVSS 6.3. EPSS: 1.8% chance of exploitation in the next 30 days.

A security vulnerability has been detected in FishCodeTech Muteki up to 0.2.5. The affected element is an unknown function of the file .claude/settings.json of the component Default Local Worker Backend. The manipulation leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The issue was closed with the comment (translated from Chinese): "The project will be refactored and shut down."

Affected products

• Fishcodetech Muteki: version 0.2.0 only; version 0.2.1 only; version 0.2.2 only; version 0.2.3 only; version 0.2.4 only; version 0.2.5 only

Published 2026-08-25. Last modified 2026-08-27.