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Active filters (1):Package: pkg:github/modelcontextprotocol/registry

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CVE-2026-44428 is a Server-Side Request Forgery (SSRF) vulnerability in the modelcontextprotocol (MCP) registry versions prior to 1.7.6. The issue arises because the GitHub OIDC token audience is globally fixed rather than bound to a specific registry instance, allowing tokens obtained from one MCP registry deployment to be accepted by others sharing the same code and audience string. This could lead to unauthorized actions based on repository ownership permissions. The vulnerability has a low severity score and is fixed in version 1.7.6.

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CVE-2026-44429 is a stored cross-site scripting (XSS) vulnerability in the modelcontextprotocol (MCP) registry versions prior to 1.7.7. The vulnerability arises from improper neutralization of input in the server.websiteUrl field, which is included in the public catalogue UI without sufficient escaping. This allows an attacker with publish access to inject malicious event handlers into the registry homepage. The vulnerability is medium severity with a CVSS 5.1 score and is fixed in version 1.7.7.

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CVE-2026-44430 is a Server-Side Request Forgery (SSRF) vulnerability in the modelcontextprotocol (MCP) registry versions prior to 1.7.7. The vulnerability arises because the registry's HTTP-based namespace verification uses a blocklist that does not cover certain IPv6 address ranges (6to4, NAT64, and deprecated site-local), which can encode arbitrary IPv4 addresses. This allows an attacker to bypass restrictions intended to prevent dialing private or internal addresses, potentially enabling SSRF attacks. The issue is fixed in version 1.7.7.

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