Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-69264

CVE-2026-69264CRITICAL

FlowiseAI Flowise — Flowise: RCE via CSVAgent csvFile data URI base64 segment is interpolated into Python source without validation

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   H   H   H    9.4   .0111   64.8     —

AFFECTED
  Product  Versions   Fixed
  Flowise  < 3.1.3 –  —

TIMELINE
  Aug 3   Reserved by GitHub_M
  Aug 4   Published (CNA: GitHub_M)
  Sep 14  EXPLOIT PUBLISHED — CVE-2026-69264 (FlowiseAI Flowise). Public exploit reference added.

CWE-94, CWE-95 · CNA: GitHub_M · CVSS v4.0 · 4 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 3, 2026	Reserved	Reserved by GitHub_M
August 4, 2026	Published	Published (CNA: GitHub_M)
September 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-69264 (FlowiseAI Flowise). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FlowiseAI	Flowise	—	< 3.1.3	—

Weaknesses

CWE-94 · CWE-95

References (4)

https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c [Patch]
https://github.com/FlowiseAI/Flowise/pull/6499 [Issue Tracking, Patch]
https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 [Patch, Release Notes]
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4j8x-x6v7-w9rq [Exploit, Mitigation, Vendor Advisory]

Authoritative record: CVE-2026-69264 at cve.org

Vendors: flowiseai

Weaknesses: CWE-94 · CWE-95

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-69264 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.