CVE-2026-73484

High

Open

TLP:CLEAR

Flowise before 3.1.3 Sandbox Escape via Pandas Methods

NVD CVE.org

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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.

Details

CVSS Score: 8.6
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Confidence: 90%
Published: Aug 13, 2026
Last Modified: Aug 13, 2026

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