CVE-2026-13435 PUBLISHED

Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure

Assigner: ibm
Reserved: 26.06.2026 Published: 30.07.2026 Updated: 31.07.2026

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

Metrics

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

Product Status

Vendor IBM
Product Langflow OSS
Versions
  • affected from 1.0.0 to 1.10.1 (incl.)

Solutions

IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.10.2 https://pypi.org/project/langflow/

References

Problem Types

  • CWE-94 Improper Control of Generation of Code ('Code Injection') CWE