CVE-2026-0621
CVE-2026-0621 · MCP TypeScript SDK UriTemplate Exploded Array Pattern ReDoS
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
Anthropic's MCP TypeScript SDK versions up to and including 1.25.1 contain a regular expression denial of service (ReDoS) vulnerability in the UriTemplate class when processing RFC 6570 exploded array patterns. The dynamically generated regular expression used during URI matching contains nested quantifiers that can trigger catastrophic backtracking on specially crafted inputs, resulting in excessive CPU consumption. An attacker can exploit this by supplying a malicious URI that causes the Node.js process to become unresponsive, leading to a denial of service.
CVSS 8.7 · Élevée · EPSS 0,4% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
mcp typescript sdk
- Versions du logiciel
- ≥ 0, ≤ 1.25.1: Concernée (semver)
Aucun correctif publié
@modelcontextprotocol/sdk npm
- Plages de versions concernées
- SEMVER: ≥ 1.3.0, < 1.25.2
Mettez à jour vers 1.25.2