CVE-2026-73484

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.

References

• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x58f-9m57-qc4m
• https://www.vulncheck.com/advisories/flowise-before-sandbox-escape-via-pandas-methods
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x58f-9m57-qc4m