---
title: "CVE-2026-69256: Flowise: Remote Code Execution Vulnerability in CSVAgent"
url: https://erroneo.us/security/cve/CVE-2026-69256/
description: "CVE-2026-69256 (flowise-components (npm)): Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-08-04
date_modified: 2026-08-05
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-69256"
kev: false
cvss: 9.4
epss: 0.0101
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-69256: Flowise: Remote Code Execution Vulnerability in CSVAgent

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 1.0% , percentile 63: FIRST’s model estimates a 1.0% chance of exploitation activity in the next 30 days, higher than 63% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes flowise-components (npm) <= 3.1.2, fixed in 3.1.3 ; flowise (npm) <= 3.1.2, fixed in 3.1.3 . Check your lockfile, including transitive dependencies.

## What it is

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent node allowed users to provide Python code that is executed through pyodide; although a denylist blocked dangerous Python constructs, pandas.readpickle() could deserialize a pickled payload and achieve code execution without matching the denied words. The affected file is flowise-components/nodes/agents/CSVAgent/CSVAgent.ts, where user-supplied customReadCSVFunc is evaluated as pd.${customReadCSVFunc}. An authenticated user who can create or modify a chatflow can add a CSV Agent, place a malicious readpickle payload in the Additional Parameters, save the chatflow, and trigger /api/v1/prediction/ to execute commands. This issue is fixed in version 3.1.3.

## Affected packages

- npm `flowise-components` <= 3.1.2 → fixed: 3.1.3
- npm `flowise` <= 3.1.2 → fixed: 3.1.3

## Affected products (CVE record)

- FlowiseAI Flowise: < 3.1.3

## Severity

- GitHub_M CVSS 4.0: 9.4 `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`
- GitHub CVSS 4.0: 9.4 `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`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.01% probability of exploitation activity in the next 30 days; percentile 63.

## Sources

- [GitHub Advisory GHSA-x6vm-w76m-8j7g](https://github.com/advisories/GHSA-x6vm-w76m-8j7g)
- [CVE.org record CVE-2026-69256](https://www.cve.org/CVERecord?id=CVE-2026-69256)
- [NVD entry CVE-2026-69256](https://nvd.nist.gov/vuln/detail/CVE-2026-69256)
- [github.com](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x6vm-w76m-8j7g)
- [github.com](https://github.com/FlowiseAI/Flowise/pull/6257)
- [github.com](https://github.com/FlowiseAI/Flowise/commit/c79fe56a6c249850e96bce9b4859f7a0083e4507)
- [github.com](https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3)

---
Source page: https://erroneo.us/security/cve/CVE-2026-69256/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt