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Vulnerability Details CVE-2026-56850

A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) client identities to be reused across requests configured with different client certificates. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 0.3%
CVSS Severity
CVSS v3 Score 4.1
Products affected by CVE-2026-56850
  • Nodejs » Node.js » Version: 24.0.0
    cpe:2.3:a:nodejs:node.js:24.0.0
  • Nodejs » Node.js » Version: 24.0.1
    cpe:2.3:a:nodejs:node.js:24.0.1
  • Nodejs » Node.js » Version: 24.0.2
    cpe:2.3:a:nodejs:node.js:24.0.2
  • Nodejs » Node.js » Version: 24.1.0
    cpe:2.3:a:nodejs:node.js:24.1.0
  • Nodejs » Node.js » Version: 24.12.0
    cpe:2.3:a:nodejs:node.js:24.12.0
  • Nodejs » Node.js » Version: 24.13.0
    cpe:2.3:a:nodejs:node.js:24.13.0
  • Nodejs » Node.js » Version: 24.16.0
    cpe:2.3:a:nodejs:node.js:24.16.0
  • Nodejs » Node.js » Version: 24.17.0
    cpe:2.3:a:nodejs:node.js:24.17.0
  • Nodejs » Node.js » Version: 24.18.0
    cpe:2.3:a:nodejs:node.js:24.18.0
  • Nodejs » Node.js » Version: 24.2.0
    cpe:2.3:a:nodejs:node.js:24.2.0
  • Nodejs » Node.js » Version: 24.3.0
    cpe:2.3:a:nodejs:node.js:24.3.0
  • Nodejs » Node.js » Version: 24.4.0
    cpe:2.3:a:nodejs:node.js:24.4.0
  • Nodejs » Node.js » Version: 24.4.1
    cpe:2.3:a:nodejs:node.js:24.4.1
  • Nodejs » Node.js » Version: 24.5.0
    cpe:2.3:a:nodejs:node.js:24.5.0


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