CVE-2026-29075

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.

CVSS v3 8.3 HIGH

8.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://github.com/mesa/mesa/commit/c35b8cd67fc89dd680ae218e49b77f6e1ee07a27	Patch
https://github.com/mesa/mesa/security/advisories/GHSA-3j55-5q6x-2h48	Vendor Advisory Mitigation

Configurations

Configuration 1 (hide)

cpe:2.3:a:mesa_project:mesa:*:*:*:*:*:python:*:*

History

11 Mar 2026, 00:21

Type	Values Removed	Values Added
CPE		cpe:2.3:a:mesa_project:mesa::::::python::*
Summary		(es) Mesa es una librería Python de código abierto para modelado basado en agentes, simulando sistemas complejos y explorando comportamientos emergentes. En la versión 3.5.0 y anteriores, la extracción de código no confiable en el flujo de trabajo benchmarks.yml puede llevar a la ejecución de código en un ejecutor privilegiado. Este problema ha sido parcheado a través del commit c35b8cd.
First Time		Mesa Project Mesa Project mesa
References	~~() https://github.com/mesa/mesa/commit/c35b8cd67fc89dd680ae218e49b77f6e1ee07a27 -~~	() https://github.com/mesa/mesa/commit/c35b8cd67fc89dd680ae218e49b77f6e1ee07a27 - Patch
References	~~() https://github.com/mesa/mesa/security/advisories/GHSA-3j55-5q6x-2h48 -~~	() https://github.com/mesa/mesa/security/advisories/GHSA-3j55-5q6x-2h48 - Vendor Advisory, Mitigation

06 Mar 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-06 17:16

Updated : 2026-03-11 00:21

NVD link : CVE-2026-29075

Mitre link : CVE-2026-29075

CVE.ORG link : CVE-2026-29075

JSON object : View

Products Affected

mesa_project

mesa

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

{"id": "CVE-2026-29075", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.7, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2026-03-06T17:16:34.167", "references": [{"url": "https://github.com/mesa/mesa/commit/c35b8cd67fc89dd680ae218e49b77f6e1ee07a27", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/mesa/mesa/security/advisories/GHSA-3j55-5q6x-2h48", "tags": ["Vendor Advisory", "Mitigation"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-94"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Mesa es una librer\u00eda Python de c\u00f3digo abierto para modelado basado en agentes, simulando sistemas complejos y explorando comportamientos emergentes. En la versi\u00f3n 3.5.0 y anteriores, la extracci\u00f3n de c\u00f3digo no confiable en el flujo de trabajo benchmarks.yml puede llevar a la ejecuci\u00f3n de c\u00f3digo en un ejecutor privilegiado. Este problema ha sido parcheado a trav\u00e9s del commit c35b8cd."}], "lastModified": "2026-03-11T00:21:12.510", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mesa_project:mesa:*:*:*:*:*:python:*:*", "vulnerable": true, "matchCriteriaId": "FDC8696B-D702-4572-88EB-AA96A9CD65E7", "versionEndIncluding": "3.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}