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TI-2026-55134 Aliases CVE-2026-79623GHSA-w4x2-2pcx-2cpc

FishCodeTech Muteki Default Local Worker Backend settings.json os command injection

Priority MEDIUM 57CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

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."

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01817 78th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FishCodeTechMuteki0.2.0; 0.2.1; 0.2.2; 0.2.3; 0.2.4; 0.2.5—No fix listedCNA
  • Muteki VendorFishCodeTech Affected 0.2.0; 0.2.1; 0.2.2; 0.2.3; 0.2.4; 0.2.5 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:fishcodetech:muteki:*:*:*:*:*:*:*:*——FishCodeTech
  • cpe:2.3:a:fishcodetech:muteki:*:*:*:*:*:*:*:* Versions — — ·FishCodeTech

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-79623
  2. 2026-10-03 Alias added: GHSA-w4x2-2pcx-2cpc

References

Exploit 1

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences