{"id":"CVE-2026-21877","summary":"n8n is vulnerable to Remote Code Execution via Arbitrary File Write","details":"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.","aliases":["GHSA-v364-rw7m-3263"],"modified":"2026-04-10T05:38:35.361855Z","published":"2026-01-08T00:39:58.697Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21877.json","cwe_ids":["CWE-434","CWE-94"],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21877.json"},{"type":"ADVISORY","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-v364-rw7m-3263"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21877"},{"type":"FIX","url":"https://github.com/n8n-io/n8n/commit/f4b009d00d1f4ba9359b8e8f1c071e3d910a55f6"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/n8n-io/n8n","events":[{"introduced":"20d2e412f61c422d933458480971e1eff945c03c"},{"fixed":"1d9b00907739a39d3df7e89feffb455e9a920e4e"}]}],"versions":["n8n-core@0.100.0","n8n-core@0.101.0","n8n-core@0.102.0","n8n-core@0.103.0","n8n-core@0.104.0","n8n-core@0.105.0","n8n-core@0.106.0","n8n-core@0.107.0","n8n-core@0.108.0","n8n-core@0.109.0","n8n-core@0.110.0","n8n-core@0.111.0","n8n-core@0.112.0","n8n-core@0.113.0","n8n-core@0.114.0","n8n-core@0.115.0","n8n-core@0.116.0","n8n-core@0.117.0","n8n-core@0.118.0","n8n-core@0.119.0","n8n-core@0.120.0","n8n-core@0.121.0","n8n-core@0.121.1","n8n-core@0.121.2","n8n-core@0.121.3","n8n-core@0.122.0","n8n-core@0.122.1","n8n-core@0.123.0","n8n-core@0.124.0","n8n-core@0.125.0","n8n-core@0.126.0","n8n-core@0.127.0","n8n-core@0.128.0","n8n-core@0.129.0","n8n-core@0.130.0","n8n-core@0.131.0","n8n-core@0.132.0","n8n-core@0.133.0","n8n-core@0.133.1","n8n-core@0.133.2","n8n-core@0.133.3","n8n-core@0.134.0","n8n-core@0.135.0","n8n-core@0.135.1","n8n-core@0.135.2","n8n-core@0.136.0","n8n-core@0.137.0","n8n-core@0.138.0","n8n-core@0.139.0","n8n-core@0.140.0","n8n-core@0.140.1","n8n-core@0.141.0","n8n-core@0.142.0","n8n-core@0.142.1","n8n-core@0.143.0","n8n-core@0.143.1","n8n-core@0.144.0","n8n-core@0.145.0","n8n-core@0.146.0","n8n-core@0.146.1","n8n-core@0.147.0","n8n-core@0.148.0","n8n-core@0.148.1","n8n-core@0.149.0","n8n-core@0.149.1","n8n-core@0.149.2","n8n-core@0.150.0","n8n-core@0.150.1","n8n-core@0.151.0","n8n-core@0.151.1","n8n-core@0.151.2","n8n-core@0.152.0","n8n-core@0.153.0","n8n-core@0.154.0","n8n-core@0.154.1","n8n-core@0.155.0","n8n-core@0.74.0","n8n-core@0.75.0","n8n-core@0.76.0","n8n-core@0.77.0","n8n-core@0.78.0","n8n-core@0.79.0","n8n-core@0.80.0","n8n-core@0.81.0","n8n-core@0.82.0","n8n-core@0.83.0","n8n-core@0.84.0","n8n-core@0.85.0","n8n-core@0.86.0","n8n-core@0.87.0","n8n-core@0.88.0","n8n-core@0.89.0","n8n-core@0.90.0","n8n-core@0.91.0","n8n-core@0.92.0","n8n-core@0.93.0","n8n-core@0.94.0","n8n-core@0.95.0","n8n-core@0.96.0","n8n-core@0.97.0","n8n-core@0.98.0","n8n-core@0.99.0","n8n-design-system@0.1.0","n8n-design-system@0.10.0","n8n-design-system@0.11.0","n8n-design-system@0.12.0","n8n-design-system@0.13.0","n8n-design-system@0.14.0","n8n-design-system@0.15.0","n8n-design-system@0.16.0","n8n-design-system@0.17.0","n8n-design-system@0.18.0","n8n-design-system@0.19.0","n8n-design-system@0.2.0","n8n-design-system@0.20.0","n8n-design-system@0.21.0","n8n-design-system@0.22.0","n8n-design-system@0.23.0","n8n-design-system@0.24.0","n8n-design-system@0.25.0","n8n-design-system@0.26.0","n8n-design-system@0.27.0","n8n-design-system@0.28.0","n8n-design-system@0.29.0","n8n-design-system@0.3.0","n8n-design-system@0.30.0","n8n-design-system@0.31.0","n8n-design-system@0.32.0","n8n-design-system@0.33.0","n8n-design-system@0.33.1","n8n-design-system@0.34.0","n8n-design-system@0.35.0","n8n-design-system@0.35.1","n8n-design-system@0.36.0","n8n-design-system@0.37.0","n8n-design-system@0.38.0","n8n-design-system@0.39.0","n8n-design-system@0.4.0","n8n-design-system@0.40.0","n8n-design-system@0.41.0","n8n-design-system@0.42.0","n8n-design-system@0.43.0","n8n-design-system@0.44.0","n8n-design-system@0.45.0","n8n-design-system@0.46.0","n8n-design-system@0.47.0","n8n-design-system@0.48.0","n8n-design-system@0.49.0","n8n-design-system@0.49.1","n8n-design-system@0.49.2","n8n-design-system@0.49.3","n8n-design-system@0.5.0","n8n-design-system@0.50.0","n8n-design-system@0.50.1","n8n-design-system@0.51.0","n8n-design-system@0.51.1","n8n-design-system@0.52.0","n8n-design-system@0.53.0","n8n-design-system@0.54.0","n8n-design-system@0.6.0","n8n-design-system@0.7.0","n8n-design-system@0.8.0","n8n-design-system@0.9.0","n8n-editor-ui@0.100.0","n8n-editor-ui@0.101.0","n8n-editor-ui@0.102.0","n8n-editor-ui@0.103.0","n8n-editor-ui@0.103.1","n8n-editor-ui@0.104.0","n8n-editor-ui@0.105.0","n8n-editor-ui@0.106.0","n8n-editor-ui@0.107.0","n8n-editor-ui@0.108.0","n8n-editor-ui@0.109.0","n8n-editor-ui@0.110.0","n8n-editor-ui@0.111.0","n8n-editor-ui@0.112.0","n8n-editor-ui@0.113.0","n8n-editor-ui@0.114.0","n8n-editor-ui@0.115.0","n8n-editor-ui@0.116.0","n8n-editor-ui@0.117.0","n8n-editor-ui@0.118.0","n8n-editor-ui@0.119.0","n8n-editor-ui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