Headline
GHSA-v364-rw7m-3263: n8n Vulnerable to RCE via Arbitrary File Write
Impact
n8n is affected by an authenticated Remote Code Execution (RCE) vulnerability.
Under certain conditions, an authenticated user may be able to cause untrusted code to be executed by the n8n service. This could result in full compromise of the affected instance.
Both self-hosted and n8n Cloud instances are impacted.
Patches
The issue has been resolved in n8n version 1.121.3.
Users are advised to upgrade to this version or later to fully address the vulnerability.
Workarounds
If upgrading is not immediately possible, administrators can reduce exposure by disabling the Git node and limiting access for untrusted users.
References
- n8n documentation: Blocking access to nodes
Impact
n8n is affected by an authenticated Remote Code Execution (RCE) vulnerability.
Under certain conditions, an authenticated user may be able to cause untrusted code to be executed by the n8n service. This could result in full compromise of the affected instance.
Both self-hosted and n8n Cloud instances are impacted.
Patches
The issue has been resolved in n8n version 1.121.3.
Users are advised to upgrade to this version or later to fully address the vulnerability.
Workarounds
If upgrading is not immediately possible, administrators can reduce exposure by disabling the Git node and limiting access for untrusted users.
References
- n8n documentation: Blocking access to nodes
References
- GHSA-v364-rw7m-3263
Related news
Cybersecurity researchers have disclosed details of yet another maximum-severity security flaw in n8n, a popular workflow automation platform, that allows an unauthenticated remote attacker to gain complete control over susceptible instances. The vulnerability, tracked as CVE-2026-21858 (CVSS score: 10.0), has been codenamed Ni8mare by Cyera Research Labs. Security researcher Dor Attias has been
Open-source workflow automation platform n8n has warned of a maximum-severity security flaw that, if successfully exploited, could result in authenticated remote code execution (RCE). The vulnerability, which has been assigned the CVE identifier CVE-2026-21877, is rated 10.0 on the CVSS scoring system. "Under certain conditions, an authenticated user may be able to cause untrusted code to be