Hub/AI Security/Advisories/GHSA-8r9q-7v3j-jr4g
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
MCP TypeScript SDK security advisory.
| GHSA | GHSA-8r9q-7v3j-jr4g |
|---|---|
| Published | Jan 5, 2026 |
| Severity | High 8.7 |
| CVE | CVE-2026-0621 |
| Status | patched |
| Affected | >= 1.3.0, < 1.25.2 |
| Fixed in | 1.25.2 |
| 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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