CVE-2026-63655
HIGH
MEDIUM
Priority: 0.03
BB Relevance:
75/100
Published: 2026-11-04
Modified: 2026-11-06
First seen: 2026-11-04
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| @tsparticles | mcp-server | < 4.3.1 |
| @tsparticles | mcp-server | < 4.3.1 |
| tsparticles | tsparticles | < 4.3.1 |
| tsparticles | tsparticles | < 4.3.1 |