CVE-2026-69256Public exploitNetwork attack vector

Authenticated command execution via read_pickle deserialization

Published Aug 4, 2026 · Updated Aug 4, 2026

Code injection in Flowise before 3.1.3 allows remote authenticated users to execute commands through a crafted CSV Agent chatflow. The CSVAgent evaluates customReadCSVFunc as a pandas call, while its denylist permits read_pickle to deserialize an attacker-supplied object. Chatflow creation or modification access is required; triggering the saved flow runs commands with the Flowise server's privileges.

CVSS severity9.4
Critical
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Flowise before 3.1.3 allows remote authenticated users to execute commands through a crafted CSV Agent chatflow. The CSVAgent evaluates customReadCSVFunc as a pandas call, while its denylist permits read_pickle to deserialize an attacker-supplied object. Chatflow creation or modification access is required; triggering the saved flow runs commands with the Flowise server's privileges.

The record

CVE
CVE-2026-69256
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
FlowiseAI
Product
Flowise
Classifications
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

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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

9.4GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
8.8Trend Micro Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A: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.

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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-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

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Your stack

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