CVE-2026-69264

Description

Prior to 3.1.3, Flowise CSVAgent interpolates an attacker-controlled segment of the csvFile data URI directly into a Python source-code template that is then executed by Pyodide. Because Pyodide is loaded with the default js bridge to globalThis, which on Node.js exposes eval and dynamic import, the attacker can break out of the Python string literal, hand a JavaScript string to js.eval, dynamically import Node built-in modules such as fs and child_process, and execute arbitrary file I/O or OS commands as the Flowise process. The two validator paths around this code, validatePythonCodeForDataFrame and validateCustomReadCSVFunction, are never applied to the bootstrap template. A workspace user with chatflows:create or agentflows/chatflows update permission can plant a CSV Agent node with a crafted csvFile; once the chatflow is exposed via POST /api/v1/prediction/:id, any unauthenticated request triggers host remote code execution. This issue is fixed in version 3.1.3.

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Produits concernés

• FlowiseAI Flowise

Scores CVSS

Faiblesses (CWE)

• CWE-94
• CWE-95

Références

• https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c Patch
• https://github.com/FlowiseAI/Flowise/pull/6499 Issue TrackingPatch
• https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 PatchRelease Notes
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4j8x-x6v7-w9rq ExploitMitigationVendor Advisory
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4j8x-x6v7-w9rq ExploitMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories