What is CVE-2026-88888?

CVE-2026-88888 is a high-severity vulnerability in Renovatebot Renovate, classified under OS Command Injection. CVSS score: 7.0/10. Published 2026-09-10.

How severe is CVE-2026-88888?

High severity. CVSS v3 base score is 7.0 out of 10.

RCE in Renovatebot Renovate

CVE-2026-88888

Renovate before 44.14.7 contains a command injection vulnerability in the Mix manager when processing private dependencies with unescaped organization parameters. Attackers can inject shell metacharacters through malicious package names to execute arbitrary commands as the Renovate user in binarySource=docker mode.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/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-2026-88888?: CVE-2026-88888 is a high-severity vulnerability in Renovatebot Renovate, classified under OS Command Injection. CVSS score: 7.0/10. Published 2026-09-10.
How severe is CVE-2026-88888?: High severity. CVSS v3 base score is 7.0 out of 10.