# github.com/modelcontextprotocol/registry (Go) vulnerabilities

5 known vulnerabilities (2 medium, 2 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pkg.go.dev/github.com/modelcontextprotocol/registry

## Advisories (5)

### [CVE-2026-44428](https://cve.now/CVE-2026-44428): MCP Registry: GitHub OIDC tokens replayable across registry deployments due to shared audience

- Severity: Low 2.1
- Published: May 14, 2026
- Affected: fixed in 1.7.6.

### [CVE-2026-44427](https://cve.now/CVE-2026-44427): MCP Registry: Open Redirect

- Severity: None 0.0
- Published: May 14, 2026
- Affected: from 1.1.0, fixed in 1.7.5.

### [CVE-2026-44429](https://cve.now/CVE-2026-44429): MCP Registry: Stored XSS in catalogue UI via attribute-quote breakout in publisher-controlled \`websiteUrl\`

- Severity: Medium 5.1
- Published: May 14, 2026
- Affected: fixed in 1.7.7.

### [CVE-2026-44430](https://cve.now/CVE-2026-44430): MCP Registry: Unauthenticated SSRF: HTTP namespace verification dials 6to4 / NAT64 / site-local IPv6 addresses, bypassing private-address…

- Severity: Medium 6.3
- Published: May 14, 2026
- Affected: fixed in 1.7.7.

### [CVE-2026-45781](https://cve.now/CVE-2026-45781): MCP Registry: OCI ownership validation fails open on upstream rate limits, allowing attacker-controlled package claims

- Severity: Low 3.5
- Published: May 14, 2026
- Affected: fixed in 1.7.9.

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