Critical · 9.9 CVE-2026-13435 EUVD-2026-51244GHSA-h7x8-fr4c-w46c

Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure

Published Jul 30, 2026 · Updated Jul 31, 2026 · Assigned by ibm

Vendor: IBM Product: Langflow OSS

Description

IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox implementation.

Affected products

Vendor	Product	Affected	Fixed
IBM	Langflow OSS	1.0.0 – ≤ 1.10.1	—

Advisories 1

WID-SEC-2026-2366 IBM Langflow Desktop: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 30, 2026

References

https://www.ibm.com/support/pages/node/7279987 vendor-advisory patch