Hub/AI Security/Advisories/GHSA-345p-7cg4-v4c7
Sharing server/transport instances can leak cross-client response data
MCP TypeScript SDK security advisory.
| GHSA | GHSA-345p-7cg4-v4c7 |
|---|---|
| Published | Feb 4, 2026 |
| Severity | High 7.1 |
| CVE | CVE-2026-25536 |
| Status | patched |
| Affected | >= 1.10.0, <= 1.25.3 |
| Fixed in | 1.26.0 |
| Component | MCP TypeScript SDK |
Sources
Checked 2026-11-04. We copy severity and fix versions from the source and never estimate them.
Affected tools
Weekly, free
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