CVE-2026-45609: Springaicommunity Mcp Security

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

mcp-security provides Security and Authorization support for Model Context Protocol in Spring AI. Prior to 0.1.9, the mcp-security framework fails to implement the mandatory SSRF mitigations outlined in the Model Context Protocol (MCP) security specifications. Specifically, it processes untrusted URLs for OAuth-related discovery and metadata without verifying if the targets are malicious or internal to the network. This only affects installations with Dynamic Client Registration (DCR) enabled This vulnerability is fixed in 0.1.9.

Affected products

• Springaicommunity Mcp Security: from 0.1.0, before 0.1.9 (fixed in 0.1.9)

Published 2026-05-29. Last modified 2026-07-21.