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GHSA-g6pc-6676-c23j — remotion

CRITICALFix: remotion-dev/remotion#6378

GHSA-g6pc-6676-c23j is a critical-severity (CVSS 9.1) CWE-123 vulnerability in remotion. A fix is available for remotion — see the affected versions and patch details below.

Remotion: arbitrary file write vulnerability

Also known asCVE-2026-30121
Published
Jun 15, 2026
Updated
Jun 19, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 27, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-g6pc-6676-c23j.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs39th percentile — riskier than 39% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-g6pc-6676-c23j by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 379,842 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

234other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
remotionnpm
1.9Mdownloads / week

Description

remotion-dev remotion v4.0.409 was discovered to contain an arbitrary file write vulnerability.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmremotionall versions4.0.410npm install remotion@4.0.410

Affected Products

1 product · 1 configurations
Application
remotionremotion
1 version
4.0.409

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for remotion, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update remotion to 4.0.410 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g6pc-6676-c23j is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

remotion-dev remotion v4.0.409 was discovered to contain an arbitrary file write vulnerability.
O3 Security · Impact-Aware SCA

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GHSA-g6pc-6676-c23j: remotion (Critical 9.1) | O3 Security