The Model Context Protocol TypeScript SDK provides TypeScript client and server implementations of the Model Context Protocol.
The Model Context Protocol TypeScript SDK provides TypeScript client and server implementations of the Model Context Protocol. From 2.0.0 until 2.3.0 in @modelcontextprotocol/server, applications that shared one stateless HTTP transport or one McpServer or Server instance among multiple clients could deliver responses and notifications to the wrong client. The affected surface is an MCP server reached over HTTP by multiple clients. The trigger is reuse of one stateless transport or server instance. Messages were associated with a connection using only the JSON-RPC request identifier. SDK clients start request identifiers at zero, so collisions occur in normal operation. Cross-client delivery
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Modelcontextprotocol, @Modelcontextprotocol
- Product
- typescript-sdk, server
- CVSS v3.1
- 7.7 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H
- Exploitation
- SSVC none, automatable no, impact partial
- Fix
- available
- Weakness
- CWE-362
- Exposure class
- Developer platform, AI infrastructure
- NVD status
- Received
Why it ranks 26 (Notable)
- CVSS v3.1 7.7 high
- Product class: developer platform, AI infrastructure
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-111770 on this site · NVD · CVE.org · Vulnpedia
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