CVE-2026-7664

CriticalCVSS 9.8/10Last modified Jun 26, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 22, 2026
Last modified
Jun 26, 2026
NVD status
Analyzed

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CVE-2026-7664: Critical severity, CVSS 9.8 | Vulnix