CVE-2026-88886: Renovate before 44.14.7 Command Injection via gradle-wrapper

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-10 · updated 2026-09-29
Weakness: CWE-78

Description

Renovate is a dependency update automation tool. In versions before 44.14.7 (and in Mend Renovate CE/EE distributions before 15.4.0, and the mend-renovate-enterprise-edition Helm chart before 10.4.0), the manager/gradle-wrapper module does not escape the distributionUrl value read from a repository's gradle/wrapper/gradle-wrapper.properties file before invoking the Gradle Wrapper CLI. In self-hosted deployments configured with binarySource=docker and allowedUnsafeExecutions=['gradleWrapper', ...], a repository that supplies a crafted distributionUrl (for example, appending a shell metacharacter and command) can cause arbitrary commands to be executed as the Renovate user when Renovate processes a Gradle Wrapper update. The issue is fixed in Renovate 44.14.7; as a workaround, remove 'gradleWrapper' from allowedUnsafeExecutions.

Affected products

mend-renovate-ce: before 15.4.0 — fixed in 15.4.0
mend-renovate-enterprise-edition: before 10.4.0 — fixed in 10.4.0
mend renovate-ce: before 15.4.0 — fixed in 15.4.0
mend renovate-ee-server: before 15.4.0 — fixed in 15.4.0
mend renovate-ee-worker: before 15.4.0 — fixed in 15.4.0
renovatebot renovate: before 44.14.7 — fixed in 44.14.7

How to fix

Upgrade to a fixed version: mend-renovate-ce 15.4.0; mend-renovate-enterprise-edition 10.4.0; mend renovate-ce 15.4.0; mend renovate-ee-server 15.4.0; mend renovate-ee-worker 15.4.0; renovatebot renovate 44.14.7. Check the vendor advisory for mitigations.

References

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