What is CVE-2026-76233?

CVE-2026-76233 is a medium-severity vulnerability in Renovatebot Renovate, classified under Command Injection. CVSS score: 6.7/10. Published 2026-08-19.

How severe is CVE-2026-76233?

Medium severity. CVSS v3 base score is 6.7 out of 10.

RCE in Renovatebot Renovate

CVE-2026-76233

Renovate versions from 39.53.0 before 40.33.0 contain a command injection vulnerability in the gleam manager where the depName parameter is appended to gleam deps update commands without proper sanitization. Attackers with repository write access can craft malicious gleam.toml files to execute arbitrary commands on the machine running Renovate.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Renovatebot Renovate

Weakness classification (CWE)

CWE-77 — Command Injection

References

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

Frequently asked questions

What is CVE-2026-76233?: CVE-2026-76233 is a medium-severity vulnerability in Renovatebot Renovate, classified under Command Injection. CVSS score: 6.7/10. Published 2026-08-19.
How severe is CVE-2026-76233?: Medium severity. CVSS v3 base score is 6.7 out of 10.