CVE-2026-30121 Remotion: arbitrary file write vulnerability
An arbitrary file write vulnerability in the Remotion library allows attackers to modify files on the system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-30121?
CVE-2026-30121 is a critical path traversal vulnerability in n/a, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
remotion-dev remotion v4.0.409 was discovered to contain an arbitrary file write vulnerability.
Weakness: CWE-123
Which versions are affected by CVE-2026-30121?
2 open source packages ship an affected version, including remotion. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
remotion npm | All versions | 4.0.410 |
remotion npm | All versions | 4.0.410 |
Products include Remotion Remotion.
How do I fix CVE-2026-30121?
Upgrade remotion to 4.0.410 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-30121 being exploited?
There is no known exploitation of CVE-2026-30121 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-g6pc-6676-c23j.