Medium [CVE-2026-21636] Nodejs network segmentation bypass
This medium-severity Red Hat Linux advisory covers CVE-2026-21636 affecting nodejs20-main, nodejs25-main, nodejs22-main.
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Summary
Nodejs network segmentation bypass. Red Hat rates this moderate (CVSS 5.8).
Weakness: CWE-281. Affected package(s): nodejs20-main, nodejs25-main, nodejs22-main, nodejs24-main.
Resolved in Red Hat advisory RHSA-2026:6402 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux.
- nodejs20-main-20.20.0-7.1.hum1
- nodejs25-main-25.9.0-1.hum1
- nodejs22-main-22.22.0-1.3.hum1
- nodejs24-main-24.14.1-4.hum1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:6402
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:6402 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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