MEDIUMCVSS 4.4

CVE-2026-56850

CVE-2026-56850 updated by NVD

Modified: 2026-08-26
Sources: nvd

Summary

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**.

Affected packages

Ecosystem	Package	Affected versions	Fixed versions
Node.js	node.js	[object Object], [object Object], [object Object]	—

References

https://nvd.nist.gov/vuln/detail/CVE-2026-56850

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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