How severe is CVE-2026-29075?

CVE-2026-29075 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-29075 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-29075?

CVE-2026-29075 affects Mesa Project Mesa. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-29075?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-29075 have an EU (EUVD) identifier?

Yes. CVE-2026-29075 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10045.

When was CVE-2026-29075 published?

CVE-2026-29075 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2026-29075

CVE-2026-29075 is a high-severity vulnerability in Mesa Project Mesa with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10045
Weakness: CWE-94
Affected product: Mesa Project Mesa
Published: 2026-03-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-29075?: CVE-2026-29075 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-29075 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-29075?: CVE-2026-29075 affects Mesa Project Mesa. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-29075?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-29075 have an EU (EUVD) identifier?: Yes. CVE-2026-29075 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10045.
When was CVE-2026-29075 published?: CVE-2026-29075 was published on 2026-03-06 and last updated on 2026-06-17.

References

Affected products (1)

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

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