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CVE-2026-76892tsParticles: Malformed JSON requests can terminate the @tsparticles/mcp-server HTTP process
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.
8.7 HIGHEPSS 0.29%Not in KEVNVD: Deferred
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.7 | HIGH | 4.0GitHub_M (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
Details
- CVE ID
- CVE-2026-76892
- Status
- Deferred
- Assigner (CNA)
- GitHub_M
- Published
- Nov 4, 2026
- Last modified
- 2026-11-06 21:32 UTC
- Weaknesses
- CWE-248 · Uncaught Exception
Affected Products
As published by the CNA in the CVE record.
tsparticlestsparticles1 version range
- < 4.3.1
@tsparticlesmcp-server1 version range
- < 4.3.1