CVE-2026-15033 christopherthielen check-peer-dependencies peerDependencies packageUtils.js shelljs.exec os command injection
Remote attackers can execute arbitrary OS commands via the shelljs.exec function in the check-peer-dependencies library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15033?
CVE-2026-15033 is a medium-severity command injection vulnerability in christopherthielen check-peer-dependencies, published on 8 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in christopherthielen check-peer-dependencies up to 4.3.4. Affected by this vulnerability is the function shelljs.exec of the file dist/packageUtils.js of the component peerDependencies. This manipulation causes os command injection. The attack may be initiated remotely. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-15033?
How do I fix CVE-2026-15033?
No fix has been published for CVE-2026-15033 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-15033 being exploited?
There is no known exploitation of CVE-2026-15033 in the wild and no public exploit code.
Sources
Also known as GHSA-fmmh-7qjr-fp9g.