CVE-2026-56850: nodejs vulnerability
nodejs · node
Affected: nodejs · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- nodejs · nodefrom 26.5.0 up to and including 26.5.0; from 24.18.0 up to and including 24.18.0; from 22.23.1 up to and including 22.23.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- nodejs
- Published
- July 2026
- Bounty reports
- 1 disclosed on HackerOne
Disclosed bug bounty reports about CVE-2026-56850
The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.
- HTTPS Agent PFX object-array key collision allows mTLS client identity reuse across different per-request certificatesNode.js · 2026 · medium severityValid
CoverageNo articles yet
No CyberSIXT article names CVE-2026-56850 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.