CVE-2026-76231 Renovate 32.135.0 before 40.33.0 Command Injection via hermit
Attackers with repository write access can execute arbitrary commands on the Renovate host by providing maliciously named hermit dependencies.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76231?
CVE-2026-76231 is a high-severity command injection vulnerability in renovatebot renovate, published on 19 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-77
Which versions are affected by CVE-2026-76231?
2 open source packages ship an affected version, including renovate.
| Package | Affected | Fixed in |
|---|---|---|
renovate npm | From 32.135.0 | 40.33.0 |
renovate npm | From 32.135.0 | 40.33.0 |
How do I fix CVE-2026-76231?
Upgrade renovate to 40.33.0 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-76231 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-76231 exists.
Sources
Also known as GHSA-36j9-mx87-2cff, GHSA-jjmm-46cq-987q.