{"id":"CVE-2026-69254","title":"Flowise is a drag & drop user interface to build a customized large language model flow","summary":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, executeJavaScriptCode() accepted caller-provided nodeVMOptions and merged them over the default NodeVM security settings in packages…","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-94"],"vendor":"flowiseai","product":"flowise","affected":["flowise < 3.1.3"],"patched":["flowise 3.1.3"],"published":"2026-08-04","updated":"2026-09-14","sourceUpdated":"2026-09-14T19:59:27.650","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-69254","references":[{"url":"https://github.com/FlowiseAI/Flowise/commit/3086cb7e323bb96c5a581d3232ef975b0d92183d","label":"security-advisories@github.com"},{"url":"https://github.com/FlowiseAI/Flowise/pull/6306","label":"security-advisories@github.com"},{"url":"https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3","label":"security-advisories@github.com"},{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3769-jgqc-cxm7","label":"security-advisories@github.com"},{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3769-jgqc-cxm7","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/advisories/GHSA-3769-jgqc-cxm7"}],"tags":["nvd","ghsa","npm"],"epss":0.00691,"epssPercentile":0.50778,"aliases":["GHSA-3769-jgqc-cxm7"],"ecosystem":"npm","ingestedAt":"2026-08-04T15:40:25.133Z","slug":"CVE-2026-69254","body":"## Overview\n\nFlowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, executeJavaScriptCode() accepted caller-provided nodeVMOptions and merged them over the default NodeVM security settings in packages/components/src/utils.ts. An authenticated attacker reaching packages/server/src/routes/node-custom-functions/index.ts could run a custom function that imported flowise-components/dist/src/utils.js, called executeJavaScriptCode() again with nodeVMOptions.require.builtin set to allow all built-in modules, and then required child_process to execute arbitrary system commands as root on the Flowise server. This issue is fixed in version 3.1.3.\n\n## Affected\n\n- `flowise < 3.1.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `flowise 3.1.3`\n\n## Package advisory (CVE-2026-69254)\n\nAffected packages:\n\n- `flowise <= 3.1.2`\n- `flowise-components <= 3.1.2`\n\nPatched in:\n\n- `flowise 3.1.3`\n- `flowise-components 3.1.3`\n\nSource: https://github.com/advisories/GHSA-3769-jgqc-cxm7","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":203205,"id":"CVE-2026-69254","ts":1789416895660,"field":"cvss","old":null,"new":"8.8"},{"seq":203204,"id":"CVE-2026-69254","ts":1789416895660,"field":"severity","old":"critical","new":"high"}]}