CVE Explorer
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 instance being targeted. On the client side, the publisher always appends audience=mcp-registry when requesting the GitHub Actions ID token, regardless of the selected --registry URL. On the server side, the exchange endpoint validates only that same fixed audie
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"registry","vendor":"modelcontextprotocol","versions":[{"status":"affected","version":"< 1.7.6"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:9e00418336142f05efe980fc9d939731d1ef03fc4006ccb6b4c9c3792b53d069 · sha256:a7b2a4c5693f8b41… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:9e00418336142f05efe980fc9d939731d1ef03fc4006ccb6b4c9c3792b53d069 · sha256:a7b2a4c5693f8b41… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:9e00418336142f05efe980fc9d939731d1ef03fc4006ccb6b4c9c3792b53d069 · sha256:a7b2a4c5693f8b41… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-95c3-6vvw-4mrq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-95c3-6vvw-4mrq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:9e00418336142f05efe980fc9d939731d1ef03fc4006ccb6b4c9c3792b53d069 · sha256:a7b2a4c5693f8b41… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.