CVE-2026-76892

CVSS 8.7 (high) · published 2026-11-04

tsParticles is a TypeScript library for creating highly customizable particle animations. Prior to 4.3.1, the HTTP mode of @tsparticles/mcp-server calls JSON.parse outside a request-local error boundary in the POST /mcp handler in integrations/mcp-server/src/index.ts. A single unauthenticated malformed JSON body raises a SyntaxError that terminates the Node.js process, leaving the MCP service unavailable until an external supervisor restarts it. This issue is fixed in version 4.3.1.

Weakness: CWE-248

Source: NVD CVE-2026-76892

References

• https://github.com/tsparticles/tsparticles/commit/25fb70e7f527a91568adaef576570289083f243b
• https://github.com/tsparticles/tsparticles/pull/5875
• https://github.com/tsparticles/tsparticles/security/advisories/GHSA-4p8p-pjpq-2w7h
• https://github.com/tsparticles/tsparticles/security/advisories/GHSA-4p8p-pjpq-2w7h

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