tsParticles is a TypeScript library for creating highly customizable particle animations. Prior to 4.3.1, the HTTP mode of @tsparticles/mcp-server accepts unauthenticated POST /mcp requests in integrations/mcp-server/src/index.ts and accumulates every request-body chunk in a Buffer[] without a cumulative size limit before Buffer.concat and JSON.parse. A remote attacker can stream an arbitrarily large body to exhaust Node.js process memory and terminate the service, including in the official Docker configuration that exposes HTTP mode on 0.0.0.0:3000. Confidentiality and integrity are not affected. This issue is fixed in version 4.3.1.
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History
Fri, 06 Nov 2026 22:00:00 +0000
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Tsparticles
Tsparticles mcp-server Tsparticles tsparticles |
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Tsparticles
Tsparticles mcp-server Tsparticles tsparticles |
Fri, 06 Nov 2026 19:30:00 +0000
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ssvc
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Wed, 04 Nov 2026 22:15:00 +0000
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| Description | tsParticles is a TypeScript library for creating highly customizable particle animations. Prior to 4.3.1, the HTTP mode of @tsparticles/mcp-server accepts unauthenticated POST /mcp requests in integrations/mcp-server/src/index.ts and accumulates every request-body chunk in a Buffer[] without a cumulative size limit before Buffer.concat and JSON.parse. A remote attacker can stream an arbitrarily large body to exhaust Node.js process memory and terminate the service, including in the official Docker configuration that exposes HTTP mode on 0.0.0.0:3000. Confidentiality and integrity are not affected. This issue is fixed in version 4.3.1. | |
| Title | tsParticles: Unbounded HTTP Request Body Buffering in @tsparticles/mcp-server Leads to Remote DoS | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-11-04T22:01:50.183Z
Updated: 2026-11-05T20:19:03.619Z
Reserved: 2026-07-17T14:47:08.031Z
Link: CVE-2026-63655
Updated: 2026-11-05T20:18:59.219Z
Status : Deferred
Published: 2026-11-04T22:18:07.350
Modified: 2026-11-06T21:32:18.733
Link: CVE-2026-63655
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