Medium [CVE-2026-76229] Arbitrary Command Injection via kustomize manager
This medium-severity Red Hat Linux advisory covers CVE-2026-76229.
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Summary
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. A flaw was found in Renovate.
Red Hat does not ship or use an affected version of Renovate. Red Hat severity: Moderate — CVSS 6.7 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
Weakness: CWE-78.
- < 39.218.0
- < 40.33.0
Official advisory · high-confidence parse· fetched 22 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 22 days ago·verify at source
Mitigation checklist
- Red Hat products are not affected (see statement). Upstream, the issue is resolved by upgrading Renovate to 40.33.0 or later; it can also be mitigated by restricting repository write access so untrusted users cannot introduce a malicious kustomization.yaml.
Official advisory · high-confidence parse· fetched 22 days ago·verify at source
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