CVE-2026-56850
Last modified
CVE-2026-56850 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. 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**.. EPSS estimates a 0.08% chance of exploitation in the next 30 days.
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**.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nodejs | Node.Js | >= 22.0, <= 22.23.1 |
| Nodejs | Node.Js | >= 24.0.0, <= 24.18.0 |
| Nodejs | Node.Js | >= 26.0.0, <= 26.5.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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