Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Springaicommunity | Mcp Security | >= 0.1.0, < 0.1.9 |
Related Weaknesses (CWE)
References
- https://github.com/spring-ai-community/mcp-security/security/advisories/GHSA-qjpMitigationVendor Advisory
FAQ
What is CVE-2026-45609?
CVE-2026-45609 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 ...
How severe is CVE-2026-45609?
CVE-2026-45609 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45609?
Check the references section above for vendor advisories and patch information. Affected products include: Springaicommunity Mcp Security.