CVE-2026-76227 renovatebot CVE debrief

Who should care

Users of Renovate versions from 42.68.1 before 42.96.3 and 42.68.1 before 43.4.4, including those with Docker images (renovate/renovate, mend/renovate-ce, renovate-ee-server, renovate-ee-worker >=13.3.0 <13.6.0), should review and restrict environment variables to an allowlist for Renovate child processes to prevent potential secret exfiltration. This includes reviewing deployment configurations and implementing compensating controls to limit exposure.

Technical summary

Renovate versions from 42.68.1 before 42.96.3 and 42.68.1 before 43.4.4 fail to restrict environment variables to an allowlist when spawning child processes, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment. This oversight in environment variable management enables potential attackers to access sensitive information. The affected products include Renovate and corresponding Docker images (renovate/renovate, mend/renovate-ce, renovate-ee-server, renovate-ee-worker >=13.3.0 <13.6.0). Reviewing deployment configurations and implementing compensating controls are crucial steps in mitigating this vulnerability.

Defensive priority

Medium-priority defensive review recommended due to potential insider or outside attacker access to Renovate deployment secrets.

Recommended defensive actions

• Review and restrict environment variables to an allowlist for Renovate child processes.
• Inventory and monitor Renovate deployments for potential insider or outside access.
• Implement compensating controls to limit secret exposure.
• Verify vendor remediation and update Renovate versions accordingly.
• Exception tracking and retest recommended.

Evidence notes

Evidence from official CVE Program record and NIST NVD detail page supports vulnerability in Renovate versions from 42.68.1 before 42.96.3 and 42.68.1 before 43.4.4. Limited detail on affected scope and vendor remediation. Additional review of deployment configurations and environment variable management is necessary to assess exposure and implement mitigations.

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.