# CVE-2026-69256: Flowise CSVAgent remote code execution via pandas read_pickle

Source: https://junglewise.ai/threats/cve-2026-69256-flowise-csvagent-remote-code-execution-via-pandas-read-pickle  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-04. Updated: 2026-08-04  
License: CC BY 4.0 with a link back

CVE-2026-69256 · Severity: critical · CVSS 8.8 · Published 2026-08-04

Flowise is an open-source tool used to build customized LLM orchestration flows. A vulnerability in its CSV processing component allows users to execute arbitrary code on the server. An attacker with low-level access could use this to take full control of the system, access sensitive data, or disrupt operations.

Technologies: [flowise (npm)](https://junglewise.ai/threats/technologies/flowise), [flowise-components (npm)](https://junglewise.ai/threats/technologies/flowise-components). Vendors: [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-69256 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69256 being exploited in the wild.

**How severe is CVE-2026-69256?** Critical severity, with a CVSS score of 8.8, published 4 August 2026.

**Which products and versions are affected?** flowise (npm) <= 3.1.2, SEMVER:introduced=0,fixed=3.1.3; flowise-components (npm) <= 3.1.2, SEMVER:introduced=0,fixed=3.1.3.

**Is there a fix for CVE-2026-69256?** Yes. flowise (npm): upgrade to 3.1.3 or later; flowise-components (npm): upgrade to 3.1.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-69256 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-69256?** Check whether you run flowise (npm) or flowise-components (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- flowise (npm): upgrade to 3.1.3 or later

  ```sh
  npm install flowise@3.1.3
  ```

- flowise-components (npm): upgrade to 3.1.3 or later

  ```sh
  npm install flowise-components@3.1.3
  ```


## Technical details

The CSVAgent node in Flowise utilizes pyodide to execute Python code for CSV processing. While the application implements a regex-based denylist to block dangerous Python constructs (like 'eval', 'exec', or 'os'), it fails to restrict the 'pandas.read_pickle()' function. This function performs deserialization of pickled data, which can be leveraged to bypass the sandbox and achieve arbitrary code execution. An attacker with permissions to create or modify Chatflows can provide a malicious payload that uses a custom file-like object to trigger the deserialization of a base64-encoded pickle object. This vulnerability is patched in version 3.1.3.

## Affected products

- FlowiseAI flowise-components <= 3.1.2
- FlowiseAI flowise <= 3.1.2

## Identifiers

- CVE-2026-69256
- GHSA-x6vm-w76m-8j7g

## Timeline

- 2026-07-29: disclosed
- 2026-08-04: advisory
- 2026-08-04: patched

## References

- [https://api.github.com/users/jia-elttam](https://api.github.com/users/jia-elttam)
- [https://github.com/jia-elttam](https://github.com/jia-elttam)
- [https://api.github.com/users/jia-elttam/gists%7B/gist_id%7D](https://api.github.com/users/jia-elttam/gists%7B/gist_id%7D)
- [https://api.github.com/users/jia-elttam/repos](https://api.github.com/users/jia-elttam/repos)
- [https://avatars.githubusercontent.com/u/201677673?v=4](https://avatars.githubusercontent.com/u/201677673?v=4)
- [https://api.github.com/users/jia-elttam/events%7B/privacy%7D](https://api.github.com/users/jia-elttam/events%7B/privacy%7D)

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- [Duplicate Advisory: Flowise contains an unauthenticated sandbox escape](https://junglewise.ai/threats/duplicate-advisory-flowise-contains-an-unauthenticated-sandbox-escape-8959e167)
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