CVE-2026-76229
Command injection in Renovate kustomize manager via malicious chart names.
Is CVE-2026-76229 being exploited?
Not confirmed. CVE-2026-76229 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.72% probability of exploitation in the next 30 days.
How severe is CVE-2026-76229?
CVE-2026-76229 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-76229?
Yes. A fix has been recorded for CVE-2026-76229. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-76229 affect?
CVE-2026-76229 affects Renovate (<40.33.0), kustomize manager, helm (helm pull), CI/CD runners/hosts running Renovate. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-76229?
Upgrade Renovate to ≥40.33.0, restrict repo write access, isolate CI/runner hosts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Arbitrary command execution on Renovate host by attackers with repository write access via crafted kustomization.yaml chart names.
Immediate action required
- affected>= 39.218.0 and < 40.33.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.