Detect Remotion RCE via Code Injection (CVE-2026-30120) in CrowdStrike LogScale
Detects exploitation of CVE-2026-30120, a critical remote code execution vulnerability in the Remotion npm package (versions < 4.0.410). The vulnerability stems from improper code injection controls (CWE-94), allowing attackers to execute arbitrary code in environments running vulnerable Remotion versions. A public PoC exists, elevating exploitation risk.
MITRE ATT&CK
- Tactic
- Execution Persistence Lateral Movement
LogScale Detection Query
DeviceProcessEvents
| filter (CommandLine contains "remotion" or CommandLine contains "@remotion")
| filter (
CommandLine contains "child_process" or
CommandLine contains "execSync" or
CommandLine contains "spawnSync" or
CommandLine contains "eval(" or
CommandLine contains "Function("
)
| filter FileName in ("node.exe", "node", "npx", "npx.cmd")
| select timestamp, DeviceName, UserName, FileName, CommandLine, ParentProcessName, ParentCommandLine
| sort timestamp descCrowdStrike Falcon CQL query detecting Node.js process activity referencing Remotion with code injection patterns consistent with CVE-2026-30120 exploitation.
Data Sources
Required Tables
False Positives & Tuning
- Legitimate Remotion render farms processing video compositions using Node.js worker pools
- Enterprise media production environments with Remotion-based automated rendering services
- DevOps engineers running Remotion CLI tools for video asset generation
Other platforms for CVE-2026-30120
Testing Methodology
Validate this detection against 3 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1Simulate Remotion Code Injection via eval()
Expected signal: Process launch event for node with command line containing 'remotion' and 'eval('. Child process event for 'id' command spawned from node. File creation event for /tmp/cve_2026_30120_test.txt.
- Test 2Simulate Remotion execSync Child Process Spawn
Expected signal: Process event for node with title 'remotion-renderer'. child_process module load. Execution of 'whoami'. File write to /tmp/remotion_rce_test.txt.
- Test 3Simulate Remotion RCE on Windows via spawnSync
Expected signal: DeviceProcessEvents entry for node.exe with 'remotion' and 'spawnSync' in CommandLine. Child process event for cmd.exe spawned from node.exe. File write event for remotion_rce_test.txt in TEMP directory.
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