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n8n Vulnerable to RCE via Arbitrary File Write

🗓️ 06 Jan 2026 17:48:24Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 17 Views

Authenticated remote code execution via arbitrary file write in n8n; fixed in version 1.121.3.

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Detection
Refs
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7 Jan 202606:27
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CVE-2026-21877
8 Jan 202600:39
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8 Jan 202600:39
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n8n Users Urged to Patch CVSS 10.0 Full System Takeover Vulnerability
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12 Jan 202600:00
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N8n < 1.121.3 Arbitrary File Write
8 Jan 202600:00
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Vulners
Node
n8nn8nRange0.123.01.121.3npm

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