CVE-2026-76227mediumCWE-526

CVE-2026-76227: medium-severity vulnerability in renovatebot renovate

Renovate 42.68.1 before 42.96.3 and 43.0.0 before 43.4.4 Environment Variable Exposure

Published · Updated

Follow this CVE+ Monitor renovate+ Monitor renovate-ce

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.8epss 0.2%
Renovate versions from 42.68.1 before 42.96.3 and from 43.0.0 before 43.4.4, including the renovate/renovate Docker images, and Mend Renovate CE/EE images (renovate-ce, renovate-ee-server, renovate-ee-worker) from 13.3.0 before 13.6.0, fail to restrict environment variables to an allowlist when spawning child processes. As a result, child processes (e.g. npm install, postUpgradeTasks, postUpdateOptions) gain full access to all environment variables of the Renovate process, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
mend · renovate-cemend · renovate-ee-servermend · renovate-ee-workerrenovatebot · renovate
Related CVEs — renovatebot renovate

In the same product, most dangerous first.

CVE-2026-88889HIGHRenovate before 44.14.7 Command Injection via distributionTypeEPSS 1.0%CVE-2026-76228HIGHRenovate before 42.68.5 Remote Code Execution via Gradle WrapperEPSS 1.0%CVE-2026-88888HIGHRenovate before 44.14.7 Command Injection via Mix organizationEPSS 0.9%CVE-2026-88885HIGHRenovate before 44.14.7 Command Injection via depNameEPSS 0.9%CVE-2026-88880CRITICALRenovate before 44.11.3 Credential Exfiltration via Link HeaderEPSS 0.5%CVE-2026-88887CRITICALRenovate before 44.11.2 Credential Exfiltration via Link HeaderEPSS 0.4%