CVE-2026-56850
Public on 2026-07-30
Modified on 2026-07-31
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**.
This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2023 | nodejs | No Fix Planned | ||
| Amazon Linux 2 - Core | nodejs-packaging | Not Affected | ||
| Amazon Linux 2023 | nodejs20 | No Fix Planned | ||
| Amazon Linux 2023 | nodejs22 | Pending Fix | ||
| Amazon Linux 2023 | nodejs24 | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 4.1 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N |