Spring AI MCP Security: Unvalidated URL Fetching (SSRF)

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0021, the 10th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 14:20 UTC First seen by agentprime
2. 31 Oct 2026, 14:20 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-qjp4-4jvr-xqg3
• OSV: GHSA-qjp4-4jvr-xqg3
• github.com/spring-ai-community/mcp-security/security/advisories/GHSA-qjp4-4jvr-xqg3
• nvd.nist.gov/vuln/detail/CVE-2026-45609
• github.com/spring-ai-community/mcp-security/pull/68
• github.com/spring-ai-community/mcp-security/commit/e6b67d8a67cd7acbee6e4c0741c385d62e3ed576
• github.com/spring-ai-community/mcp-security
• github.com/spring-ai-community/mcp-security/releases/tag/v0.1.9

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.