Is github.com/modelcontextprotocol/registry affected by CVE-2026-45781?

Go github.com/modelcontextprotocol/registry is affected in <1.7.9.

Is CVE-2026-45781 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

medium

CVE-2026-45781

Q: Is CVE-2026-45781 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

Go · github.com/modelcontextprotocol/registry

Summary

MCP Registry: OCI validator skips ownership check on upstream rate limits in github.com/modelcontextprotocol/registry

Severity: medium
EPSS: 0.2% (p11)
Also known as: GHSA-2v5f-5r6w-p67r, GO-2026-5008
Published: 2026-05-20

References

https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-2v5f-5r6w-p67r
https://nvd.nist.gov/vuln/detail/CVE-2026-45781

Related advisories

CVE-2026-44430 — medium · Go/github.com/modelcontextprotocol/registry
CVE-2026-44429 — medium · Go/github.com/modelcontextprotocol/registry
CVE-2026-44427 — medium · Go/github.com/modelcontextprotocol/registry

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.