{"id":"CVE-2026-72764","title":"n8n's JavaScript task runner shared a single module cache across all users' Code-node executions","summary":"n8n's JavaScript task runner shared a single module cache across all users' Code-node executions. In affected versions (before 1.123.67, 2.31.5, and 2.32.1), a user able to run a Code node could poison a cached module and thereby alter o…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-668"],"vendor":"n8n","product":"n8n","affected":["n8n < 1.123.67","n8n >= 2.0.0, < 2.31.5","n8n = 2.32.0"],"patched":["n8n 2.31.5"],"published":"2026-08-11","updated":"2026-09-18","sourceUpdated":"2026-09-18T19:47:30.163","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72764","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-9cmh-xcqm-5hqr","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/n8n-before-module-cache-poisoning-via-code-node","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00447,"epssPercentile":0.38133,"ingestedAt":"2026-09-09T21:22:45.526Z","slug":"CVE-2026-72764","body":"## Overview\n\nn8n's JavaScript task runner shared a single module cache across all users' Code-node executions. In affected versions (before 1.123.67, 2.31.5, and 2.32.1), a user able to run a Code node could poison a cached module and thereby alter other users' Code-node executions on the same runner, affecting their confidentiality, integrity, or availability. This is a cross-user isolation break within a single n8n instance and does not constitute a sandbox escape or remote code execution. Only multi-user instances running the JS task runner with built-in or external modules enabled are affected.\n\n## Affected\n\n- `n8n < 1.123.67`\n- `n8n >= 2.0.0, < 2.31.5`\n- `n8n = 2.32.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `n8n 2.31.5`","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":207454,"id":"CVE-2026-72764","ts":1789761005624,"field":"cvss","old":null,"new":"8.8"},{"seq":207453,"id":"CVE-2026-72764","ts":1789761005624,"field":"severity","old":"none","new":"high"}]}