CVE-2026-73484

High

Description

Flowise before 3.1.3 contains a sandbox escape vulnerability in pythonCodeValidator.ts that fails to block native Pandas DataFrame methods like to_csv, to_json, pipe, and query. Authenticated attackers can exploit this to exfiltrate uploaded CSV data or write arbitrary files to the server filesystem.

SeverityHigh

CVSS8.1

Exploit probability—

ProductFlowise

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-184CWE-184

How to fix

Update

flowiseai flowise3.1.3 or later

Vendor advisories

github.com/FlowiseAI/Flowise/security/advisories/GHSA-x58f-9m57-qc4m

Affected products

Product	Affected versions	Fixed in
flowiseai flowise	v < 3.1.3	3.1.3

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