CVE-2026-88886
Undergoing Analysis Undergoing Analysis - In Progress

Command Injection in Renovate Dependency Manager

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: VulnCheck

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.

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Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-10
AI Q&A
2026-09-10
EPSS Evaluated
N/A
NVD
CVE-2026-88886
EUVD
EUVD-2026-75436

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
renovate renovate to 44.14.7 (exc)
mend renovate_ce to 15.4.0 (exc)
mend renovate_ee to 15.4.0 (exc)
mend renovate_enterprise_edition to 10.4.0 (exc)
renovate renovate 44.14.7
mend renovate_ce 15.4.0
mend renovate_ee 15.4.0
mend renovate_enterprise_edition 10.4.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

CVE-2026-88886 is a command injection vulnerability in Renovate's gradle-wrapper module. It occurs when Renovate updates the Gradle Wrapper in self-hosted environments using binarySource=docker with allowedUnsafeExecutions including 'gradleWrapper'. An attacker can craft a malicious gradle-wrapper.properties file with a specially formatted distributionUrl that executes arbitrary commands as the Renovate user when processed.

Detection Guidance

Check if Renovate is running in self-hosted mode with binarySource=docker and allowedUnsafeExecutions including 'gradleWrapper'. Inspect gradle-wrapper.properties files in repositories for malicious distributionUrl values containing shell metacharacters or commands. Look for unexpected command executions by the Renovate user.

Impact Analysis

This vulnerability allows attackers to execute arbitrary commands on the system running Renovate with the privileges of the Renovate user. This could lead to data theft, system compromise, or further network infiltration. The impact depends on the permissions of the Renovate user account.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations may face compliance violations, regulatory fines, and reputational damage if exploited.

Mitigation Strategies

Upgrade Renovate to version 44.14.7 or later. For Mend Renovate CE/EE, upgrade to 15.4.0. For Helm charts, upgrade to 10.4.0. As a temporary measure, remove 'gradleWrapper' from allowedUnsafeExecutions in the configuration.

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