CVE-2026-44428
medium
CVSS v3
4.7
CVSS v2
—
VIR risk
4.7
Description
MCP Registry's GitHub OIDC tokens are replayable across registry deployments due to shared audience
Predictions
Exploit likelihood
57%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: security-advisories@github.com — https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-95c3-6vvw-4mrq
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/modelcontextprotocol/registry | <1.7.6 | 1.7.6 |
| GO | github.com/modelcontextprotocol/registry | < 1.7.6 | 1.7.6 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| lfprojects | mcp_registry | {"endExcluding":"1.7.6"} | 1.7.6 |
References
- https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-95c3-6vvw-4mrq
- https://nvd.nist.gov/vuln/detail/CVE-2026-44428
- https://github.com/modelcontextprotocol/registry/pull/1229
- https://github.com/modelcontextprotocol/registry/commit/3f89fc2b1fb34fd49f3c0e1b39e964a5c67b613f
- https://github.com/modelcontextprotocol/registry
- https://github.com/modelcontextprotocol/registry/releases/tag/v1.7.6
- https://github.com/advisories/GHSA-95c3-6vvw-4mrq
CWEs
CWE-918
Verify integrity in audit chain (admin only). AS-IS.