{"apiVersion":"1.0","identifier":"CVE-2026-77083","description":"n8n is a workflow automation platform. In versions prior to 1.123.69, 2.33.4, and 2.34.1, the JavaScript Code node-s VM sandbox did not freeze the sandbox-s Function.prototype, allowing an authenticated user with the ability to create and execute workflows to pollute it from within a Code node execution and recover a reference to the host-s globalThis, resulting in a sandbox escape. The full exploit chain additionally depends on specific modules being available as allowlisted imports in the deployment-s configuration. The issue is fixed in versions 1.123.69, 2.33.4, and 2.34.1.","publishedAt":"2026-08-20T12:16:39","lastModifiedAt":"2026-08-21T12:16:35","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77083","cvssScore":6,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00271,"riskScore":0.61,"affectedProduct":"n8n","affectedVersions":"<1.123.69,<2.33.4,<2.34.1","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-77083","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-77083","en":"https://www.redsauce.net/en/cves/CVE-2026-77083","fr":"https://www.redsauce.net/fr/cves/CVE-2026-77083","pt":"https://www.redsauce.net/pt/cves/CVE-2026-77083","de":"https://www.redsauce.net/de/cves/CVE-2026-77083","sk":"https://www.redsauce.net/sk/cves/CVE-2026-77083","el":"https://www.redsauce.net/el/cves/CVE-2026-77083"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-77083"}}