CVE-2026-45609— mcp-security: Unvalidated URL Fetching (SSRF)
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| spring-ai-community | mcp-security | < 0.1.9 | affected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-45609
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
mcp-security: Unvalidated URL Fetching (SSRF)
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| spring-ai-community | mcp-security | < 0.1.9 | - |
II. Public POCs for CVE-2026-45609
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-45609
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-45609 (1)
IV. Related Vulnerabilities
Same weakness: CWE-918
- CVE-2026-44285
FastGPT: SSRF Protection Bypass via `externalFile` in Datase - CVE-2026-48555
Spatie Laravel Media Library < 11.23.0 SSRF via addMediaFrom - CVE-2026-49372
TeamCity未授权SSRF漏洞 - CVE-2026-44652
SillyTavern: SSRF vulnerability in the CORS proxy middleware - CVE-2026-46372
SillyTavern: SSRF in SearXNG Search Proxy via Unvalidated ba
V. Comments for CVE-2026-45609
No comments yet