What is CVE-2026-88889?

CVE-2026-88889 is a high-severity vulnerability in Renovatebot Renovate, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-09-10.

How severe is CVE-2026-88889?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Renovatebot Renovate

CVE-2026-88889

Renovate before 44.14.7 contains a command injection vulnerability in the Maven Wrapper manager that allows attackers to execute arbitrary commands by specifying a malicious distributionType parameter in maven-wrapper.properties. Attackers can inject shell commands through unescaped distributionType values to achieve remote code execution when Renovate processes Maven Wrapper updates in binarySource=docker mode.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Renovatebot Renovate

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-88889?: CVE-2026-88889 is a high-severity vulnerability in Renovatebot Renovate, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-09-10.
How severe is CVE-2026-88889?: High severity. CVSS v3 base score is 7.8 out of 10.