Unrated severityNVD Advisory· Published Jun 22, 2026
Unauthenticated Flow Execution via Webhook Endpoint in Langflow OSS
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
1- Range: >=1.0.0 <=1.8.4
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
1- www.ibm.com/support/pages/node/7277243mitrevendor-advisorypatch
News mentions
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