What is CVE-2026-44428?

CVE-2026-44428 is a medium-severity vulnerability in Lfprojects Mcp_registry, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.7/10. Published 2026-05-14.

How severe is CVE-2026-44428?

Medium severity. CVSS v3 base score is 4.7 out of 10.

SSRF in Lfprojects Mcp_registry

CVE-2026-44428

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.6, the client-side and server-side GitHub OIDC flow is bound only to a global audience string, not to the specific registry i…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.

Affected products

Lfprojects Mcp_registry
Modelcontextprotocol Registry — versions < 1.7.6

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44428?: CVE-2026-44428 is a medium-severity vulnerability in Lfprojects Mcp_registry, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.7/10. Published 2026-05-14.
How severe is CVE-2026-44428?: Medium severity. CVSS v3 base score is 4.7 out of 10.