CVE-2026-76231 renovatebot CVE debrief

Who should care

Defenders responsible for managing Renovate installations, especially those with repository write access, should assess exposure and prioritize patching or mitigation. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review compensating controls, monitor logs, and track exceptions for exposed assets.

Why it matters

Defenders should care about CVE-2026-76231 because it allows attackers with repository write access to potentially execute arbitrary commands on the machine running Renovate, which could lead to system compromise. Verification of exposure and patching or mitigation is necessary.

• Potential arbitrary command execution on the machine running Renovate
• Compromise of systems with repository write access
• Verification of patching or mitigation is required

Technical summary

The Renovate hermit manager is vulnerable to command injection due to improper sanitization of user-provided dependency names. This allows attackers with repository write access to potentially execute arbitrary commands on the machine running Renovate. The vulnerability is confirmed in Renovate versions from 32.135.0 before 40.33.0. The CVE record and NVD entry provide details on the vulnerability, but additional information from the source references may be necessary for a comprehensive understanding. Affected product deployments should be reviewed for exposure, and defenders should prioritize patching or mitigating this vulnerability.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability, especially in environments where Renovate is used with repository write access.

Recommended defensive actions

• Patch Renovate to version 40.33.0 or later
• Restrict repository write access to trusted users
• Monitor Renovate logs for suspicious activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The vulnerability is confirmed in Renovate versions from 32.135.0 before 40.33.0. The CVE record and NVD entry provide details on the vulnerability, but additional information from the source references may be necessary for a comprehensive understanding.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.