Arbitrary Code Injection Affecting flowise package, versions <3.1.3


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-JS-FLOWISE-18600564
  • published9 Aug 2026
  • disclosed4 Aug 2026
  • creditUnknown

Introduced: 4 Aug 2026

NewCVE-2026-69255  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade flowise to version 3.1.3 or higher.

Overview

flowise is a Flowiseai Server

Affected versions of this package are vulnerable to Arbitrary Code Injection via unsanitized string interpolation in the CSVAgent process. An attacker can execute arbitrary operating system commands, read sensitive files, steal credentials, and cause denial of service by injecting malicious payloads into the base64 string parameter, which is directly inserted into executable Python code without proper validation. This is only exploitable if the attacker is able to supply a crafted CSV file to the agent, and the payload does not contain commas.

CVSS Base Scores

version 4.0
version 3.1