Server-side Request Forgery (SSRF) Affecting github.com/modelcontextprotocol/registry/internal/api/handlers/v0/auth package, versions <1.7.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMMODELCONTEXTPROTOCOLREGISTRYINTERNALAPIHANDLERSV0AUTH-17116451
- published1 Jun 2026
- disclosed14 May 2026
- creditmatte1782
Introduced: 14 May 2026
CVE-2026-44430 (opens in a new tab)How to fix?
Upgrade github.com/modelcontextprotocol/registry/internal/api/handlers/v0/auth to version 1.7.7 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the HTTP-based namespace verification process. An attacker can access internal or private network resources by supplying specially crafted IPv6 addresses that bypass the intended address allowlist.