CVE-2026-56850
MEDIUM
4.4
CVSS Score
Published: July 30, 2026 at 06:02 AM UTC
Updated: October 23, 2026 at 10:10 PM UTC
1 product affected across 1 vendorNode.js
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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.1%
SSVC
No known exploit
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**.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor Advisory
Source: cverecord
https://nodejs.org/en/blog/vulnerability/july-2026-security-releasesSSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusANALYZED
CWE
CWE-287
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