VULNERABILITY INTELLIGENCE

CVE-2026-7664

CVSS score9.8 CRITICAL
EPSS probability0.50%
CISA KEVNot currently listed
Published2026-06-22
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.

Weakness classification

  • psirt@us.ibm.com: CWE-287
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references