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
A flaw was found in Renovate. This arbitrary command injection vulnerability exists within the kustomize manager, where user-provided chart names are not properly sanitized before being used in helm pull commands.
An attacker with write access to a repository can exploit this by crafting malicious kustomization.yaml files with specially designed chart names. This allows them to execute arbitrary commands on the Renovate host machine, leading to arbitrary code execution.
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.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour 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 1 hour 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 1 hour ago·verify at source
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