CVE-2026-25536
CVE-2026-25536 · @modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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.
CVSS 7.1 · Élevée · EPSS 0,3% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
typescript-sdk
- Versions du logiciel
- >= 1.10.0, < 1.26.0: Concernée
Aucun correctif publié
@modelcontextprotocol/sdk npm
- Plages de versions concernées
- SEMVER: ≥ 1.10.0, < 1.26.0
Mettez à jour vers 1.26.0
Sources originales
- https://github.com/modelcontextprotocol/typescript-sdk/security/advisories/GHSA-345p-7cg4-v4c7
- https://github.com/modelcontextprotocol/typescript-sdk/issues/204
- https://github.com/modelcontextprotocol/typescript-sdk/issues/243
- https://access.redhat.com/security/cve/CVE-2026-25536
- https://bugzilla.redhat.com/show_bug.cgi?id=2436937
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25536.json
- https://access.redhat.com/errata/RHSA-2026:3960
- https://nvd.nist.gov/vuln/detail/CVE-2026-25536