CVE-2026-45609

{"id": "CVE-2026-45609", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45609", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-02T01:21:25.215083Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "spring-ai-community", "product": "mcp-security", "versions": [{"status": "affected", "version": "< 0.1.9"}]}]}], "published": "2026-05-29T15:16:23.463", "references": [{"url": "https://github.com/spring-ai-community/mcp-security/security/advisories/GHSA-qjp4-4jvr-xqg3", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "mcp-security proporciona soporte de Seguridad y Autorizaci\u00f3n para el Protocolo de Contexto del Modelo en Spring AI. Antes de la versi\u00f3n 0.1.9, el framework mcp-security no implementa las mitigaciones obligatorias de SSRF descritas en las especificaciones de seguridad del Protocolo de Contexto del Modelo (MCP). Espec\u00edficamente, procesa URLs no confiables para el descubrimiento y los metadatos relacionados con OAuth sin verificar si los objetivos son maliciosos o internos a la red. Esto solo afecta a instalaciones con el Registro Din\u00e1mico de Clientes (DCR) habilitado. Esta vulnerabilidad se corrige en la versi\u00f3n 0.1.9."}], "lastModified": "2026-07-21T12:10:00.090", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:springaicommunity:mcp_security:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F87C9B61-A280-4A38-853B-E9242D2C68C0", "versionEndExcluding": "0.1.9", "versionStartIncluding": "0.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}