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TI-2026-23220 Aliases CVE-2026-29075

Mesa: Checking out of untrusted code in `benchmarks.yml` workflow may lead to code execution in privileged runner

Priority MEDIUM 48CWE-94Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-94.

Summary

Mesa is an open-source Python library for agent-based modeling, simulating complex systems and exploring emergent behaviors. In version 3.5.0 and prior, checking out of untrusted code in benchmarks.yml workflow may lead to code execution in privileged runner. This issue has been patched via commit c35b8cd.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00408 35th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
mesamesaup to 3.5.0—No fix listedCNA
  • mesa Vendormesa Affected up to 3.5.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mesa_project:mesa:*:*:*:*:*:python:*:*up to 3.5.0VulnerableMesa Project
  • cpe:2.3:a:mesa_project:mesa:*:*:*:*:*:python:*:* Versions up to 3.5.0 Vulnerable ·Mesa Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29075

References

Patch 1

Advisory 1

  • TI-2026-33119 Malware in 42 @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys KEVCVSS 3.1CRITICAL 9.6

Sources

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