Vulnerability · Published Aug 4, 2026 · Assigned by GitHub_M
CVE-2026-69256Flowise: Remote Code Execution Vulnerability in CSVAgent
Critical 9.4
In plain English
A critical-severity code injection in Flowise from FlowiseAI. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.read_pickle() 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 read_pickle payload in the Additional Parameters, save the chatflow, and trigger /api/v1/prediction/<UUID> to execute commands. This issue is fixed in version 3.1.3.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | flowise | 3.1.3 | GHSA-x6vm-w76m-8j7g |
| npm | flowise-components | 3.1.3 | GHSA-x6vm-w76m-8j7g |
Affected products (as reported)
Weakness: CWE-94 · Vector: 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
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x6vm-w76m-8j7g x_refsource_CONFIRM
- https://github.com/FlowiseAI/Flowise/pull/6257 x_refsource_MISC
- https://github.com/FlowiseAI/Flowise/commit/c79fe56a6c249850e96bce9b4859f7a0083e4507 x_refsource_MISC
- https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 x_refsource_MISC