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CVE CVE-2026-56850

CVE-2026-56850

Node.js

Severity: MEDIUM
CVSS: 4.1CVSS
Published: 2026-07-30
Last modified: 2026-07-30
CVSS vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
CWE: CWE-287

Description

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**.

References

https://nodejs.org/en/blog/vulnerability/july-2026-security-releases

Summary

Description

References