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CVE-2026-76228 medium CVSS 6.7

OS Command Injection in Renovate (CVE-2026-76228)

Summary

OS command injection in Renovate (CVE-2026-76228). Successful exploitation can lead to full system takeover.

Original description

The description as published by the source.

Summary

Renovate can be tricked into executing shell code while updating the Gradle Wrapper. A malicious distributionUrl in gradle/wrapper/gradle-wrapper.properties can lead to command execution in the Renovate runtime.

Details

When Renovate handles Gradle Wrapper artifacts, it may run a wrapper update command such as:

  • ./gradlew :wrapper --gradle-distribution-url

In the observed behavior, Renovate executes this via a shell (e.g., /bin/sh -c ...).
If distributionUrl contains shell command substitution syntax like $(...), the shell evaluates it before Gradle validates/parses the URL.

After that, Gradle attempts to parse the URL as a URI and fails with URISyntaxException, but the shell substitution has already executed.

This is reproducible even when allowScripts is disabled (default is OFF), because this execution happens as part of Gradle Wrapper artifact handling rather than “repository install scripts”.

Prerequisites / attack conditions:

  • The attacker must be able to get a malicious gradle-wrapper.properties into a repository that Renovate scans (e.g., direct write access, or a maintainer merges an attacker’s change/PR).
  • Renovate must be configured to process Gradle Wrapper updates/artifacts for that repository (default behavior for the Gradle Wrapper manager).

PoC

  1. Create a repository with a Gradle Wrapper (gradlew, gradlew.bat, gradle/wrapper/gradle-wrapper.jar, and gradle/wrapper/gradle-wrapper.properties).
  2. Set…

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-76228 has been found in Renovate.
Successful exploitation can lead to full system takeover. CVSS score: 6.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Renovate CVE-2026-76228" on the vendor's site.

CVE-2026-76228 (Renovate) — CWE-78 / CVSS v3 6.7
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

OS command injection (CWE-78) exists in Renovate.

📍 Affected scope

Check the vendor advisory for the affected versions of Renovate.

🔥 Severity

Severity: Medium (CVSS 6.7/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Renovate' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'Renovate' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で Renovate を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

npm renovate
[{"type":"SEMVER","events":[{"introduced":"32.124.0"},{"fixed":"42.68.5"}]}]

References

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