Vulnerability details
CVE-2026-69256
Flowise: Remote Code Execution Vulnerability in CSVAgent
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.4Critical | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| FlowiseAI | Flowise | < 3.1.3 | CVEProject cvelistV5 (CNA) |
References and advisories
4- 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
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x6vm-w76m-8j7g x_refsource_CONFIRM
Details
- Published
- 2026-08-04
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-94Improper Control of Generation of Code ('Code Injection')