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VulnerabilityPublished

CVE-2026-76892: tsparticles · Uncaught Exception

Affects tsparticlesSource CVE Database V5

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Not known to be exploited · CVSS 8.7 High : upgrade to 4.3.1 soon.

Data as of 5 Nov 2026, 00:16 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 4.08.7
Patch
Available – fixed in 4.3.1
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade tsparticles and mcp-server to 4.3.1.

Affected software

ProductAffectedFixed in
tsparticlestsparticlesAffected
  • <4.3.1
Fixed in
  • 4.3.1
@tsparticlesmcp-serverAffected
  • <4.3.1
Fixed in
  • 4.3.1

AI-suggested

Upgrade tsparticles to version 4.3.1 or later, where this uncaught exception vulnerability is fixed. No other mitigations are indicated.

Description

A vulnerability in tsparticles prior to version 4.3.1 allows an unauthenticated attacker to send a malformed JSON body to the HTTP mode of @tsparticles/mcp-server, causing a SyntaxError that terminates the Node.js process. This results in denial of service by making the MCP service unavailable until manually restarted. The issue is fixed in version 4.3.1.

References

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