Critical severity9.8NVD Advisory· Published Jun 22, 2026· Updated Jun 26, 2026

CVE-2026-7664

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Langflow AI/Langflow
cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
Range: >=1.0.0,<=1.8.4
IBM/Langflow OSSllm-fuzzy
Range: 1.0.0 - 1.8.4

Patches

Vulnerability mechanics

References

www.ibm.com/support/pages/node/7277243nvdVendor Advisory

News mentions

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