n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full compromise and can impact both self-hosted and n8n Cloud instances. This issue is fixed in version 1.121.3. Administrators can reduce exposure by disabling the Git node and limiting access for untrusted users, but upgrading to the latest version is recommended.
Metrics
Affected Vendors & Products
References
History
Thu, 08 Jan 2026 19:15:00 +0000
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ssvc
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Thu, 08 Jan 2026 10:00:00 +0000
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| First Time appeared |
N8n
N8n n8n |
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| Vendors & Products |
N8n
N8n n8n |
Thu, 08 Jan 2026 01:00:00 +0000
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| Description | n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full compromise and can impact both self-hosted and n8n Cloud instances. This issue is fixed in version 1.121.3. Administrators can reduce exposure by disabling the Git node and limiting access for untrusted users, but upgrading to the latest version is recommended. | |
| Title | n8n is vulnerable to Remote Code Execution via Arbitrary File Write | |
| Weaknesses | CWE-434 CWE-94 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-01-08T00:39:58.697Z
Updated: 2026-01-08T18:59:10.198Z
Reserved: 2026-01-05T17:24:36.928Z
Link: CVE-2026-21877
Updated: 2026-01-08T18:59:07.481Z
Status : Awaiting Analysis
Published: 2026-01-08T01:15:55.697
Modified: 2026-01-08T18:08:18.457
Link: CVE-2026-21877
No data.