What’s Vulnerable › Vulnerabilities

CVE-2026-76229: Renovate 39.218.0 before 40.33.0 Arbitrary Command Injection via kustomize

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-19 · updated 2026-09-08
• Weakness: CWE-77

Description

Renovate versions from 39.218.0 before 40.33.0 contain an arbitrary command injection vulnerability in the kustomize manager where user-provided chart names are appended to helm pull commands without proper sanitization. Attackers with repository write access can craft malicious kustomization.yaml files with specially crafted chart names to execute arbitrary commands on the Renovate host machine.

Affected products

• renovatebot renovate: from 39.218.0 before 40.33.0 — fixed in 40.33.0

How to fix

Upgrade to a fixed version: renovatebot renovate 40.33.0. Check the vendor advisory for mitigations.

References

• https://github.com/renovatebot/renovate/commit/cc08c6e98f19e6258c5d3180c70c98e1be0b0d37
• https://github.com/renovatebot/renovate/security/advisories/GHSA-xv56-3wq5-9997
• https://www.vulncheck.com/advisories/renovate-before-arbitrary-command-injection-via-kustomize

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