RCE in Renovatebot Renovate
CVE-2026-76231
Renovate versions from 32.135.0 before 40.33.0 contain a command injection vulnerability in the hermit manager where user-provided dependency names are appended to install and uninstall commands without proper sanitization. Attackers with repository write access can provide maliciously named hermit dependencies to execute arbitrary commands on the machine running Renovate.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.010 (62.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.010 · change: +0.003
Affected products
Weakness classification (CWE)
References
- github.com/renovatebot/renovate/commit/41e8b99f86a6e2a56f80f7aa1a08a59d76f2358c (patch)
- github.com/renovatebot/renovate/commit/a70a6a376d31148e80be5a5c885ac33ff5ddb30c (patch)
- github.com/renovatebot/renovate/commit/b696abb3c2741508fbb4029f39153140a3722e1e (patch)
- github.com/renovatebot/renovate/commit/eaec10d7c8afadbdd783ac47bd2adbfab444d6df (patch)
- github.com/renovatebot/renovate/security/advisories/GHSA-36j9-mx87-2cff (vendor-advisory)
- www.vulncheck.com/advisories/renovate-before-command-injection-via-hermit (third-party-advisory)
Frequently asked questions
- What is CVE-2026-76231?
- CVE-2026-76231 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-2026-76231?
- Medium severity. CVSS v3 base score is 6.7 out of 10.