CVE-2026-69264Public exploitNetwork attack vector

RCE via unvalidated CSVAgent data URI interpolation

Published Aug 4, 2026 · Updated Aug 4, 2026

Code injection in Flowise before 3.1.3 allows remote authenticated users to execute OS commands through a crafted CSVAgent csvFile data URI. CSVAgent.run() inserts a parsed base64String verbatim into a Python bootstrap template that Pyodide executes, allowing injected Python to reach Node.js through the default js bridge. Planting the node requires chatflow or agentflow edit permission; a public prediction request can then trigger commands as the Flowise process.

CVSS severity9.4
Critical
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in Flowise before 3.1.3 allows remote authenticated users to execute OS commands through a crafted CSVAgent csvFile data URI. CSVAgent.run() inserts a parsed base64String verbatim into a Python bootstrap template that Pyodide executes, allowing injected Python to reach Node.js through the default js bridge. Planting the node requires chatflow or agentflow edit permission; a public prediction request can then trigger commands as the Flowise process.

The record

CVE
CVE-2026-69264
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
FlowiseAI
Product
Flowise
Classifications
CWE-95, CWE-94, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FlowiseAI · Flowiseversion=< 3.1.3

Published CVSS scores

9.4GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo