CVE-2026-13435

CRITICAL

Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://www.ibm.com/support/pages/node/7279987

Scores

CVSS v3 9.9
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (1)
IBM/Langflow OSS 1.0.0 - 1.10.1
Published Jul 30, 2026
Tracked Since Jul 30, 2026