Flowise: Remote Code Execution Vulnerability in CSVAgent (CVE-2026-69256) | HOL Guard CVE

Critical · CVSS 9.4CVE-2026-69256GHSA-X6VM-W76M-8J7G

Flowise: Remote Code Execution Vulnerability in CSVAgent

Answer in brief

CVE-2026-69256 records a Critical severity (CVSS 9.4) vulnerability in Flowise: Remote Code Execution Vulnerability in CSVAgent. The current sources do not mark it as known exploited. The current feed maps FlowiseAI/Flowise (generic), flowise (npm), flowise-components (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 4, 2026Updated Sep 8, 2026Source checked Sep 18, 2026First seen by HOL Aug 4, 2026Material review Sep 8, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.4
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 9.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps FlowiseAI/Flowise (generic), flowise (npm), flowise-components (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
FlowiseAI/Flowisegeneric	< 3.1.3	Not reported
flowisenpm	<=3.1.2	3.1.3
flowise-componentsnpm	<=3.1.2	3.1.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for FlowiseAI/Flowise, flowise, flowise-components.
Review the reported fix. Update flowise to 3.1.3; flowise-components to 3.1.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 4, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.