CVE detail
CVE-2026-25536
MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. From version 1.10.0 to 1.25.3, cross-client response data leak when a single McpServer/Server and transport instance is reused across multiple client connections, most commonly in stateless StreamableHTTPServerTransport deployments. This issue has been patched in version 1.26.0.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 20.8 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
7 source links · newest first
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25536.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comFeb 4, 2026, 10:15 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2436937bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comFeb 4, 2026, 10:15 PM - https://access.redhat.com/security/cve/CVE-2026-25536access.redhat.com
No excerpt available.
Exploitaccess.redhat.comFeb 4, 2026, 10:15 PM - https://access.redhat.com/errata/RHSA-2026:3960access.redhat.com
No excerpt available.
Exploitaccess.redhat.comFeb 4, 2026, 10:15 PM - https://github.com/modelcontextprotocol/typescript-sdk/security/advisories/GHSA-345p-7cg4-v4c7github.com
No excerpt available.
Exploitgithub.comFeb 4, 2026, 10:15 PM No excerpt available.
Exploitgithub.comFeb 4, 2026, 10:15 PMNo excerpt available.
Exploitgithub.comFeb 4, 2026, 10:15 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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