Medium [CVE-2026-21637] Nodejs denial of service
This medium-severity Red Hat Linux advisory covers CVE-2026-21637 affecting Red Hat Enterprise Linux 1, nodejs22, nodejs:20.
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Summary
Nodejs denial of service. Red Hat rates this moderate (CVSS 5.9).
Weakness: CWE-248. Affected package(s): nodejs22, nodejs:20, nodejs:22, nodejs25-main, nodejs:24, nodejs24-main.
Resolved in Red Hat advisory RHSA-2026:1842 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 1.
- nodejs22-1:22.22.0-1.el10_0
- nodejs:20-9060020260210180816.rhel9
- nodejs:22-9060020260210120402.rhel9
- nodejs25-main-25.9.0-1.hum1
- nodejs22-1:22.22.0-3.el10_1
- nodejs:24-8100020260116121421.6d880403
- nodejs:22-8100020260119091831.6d880403
- nodejs:22-9070020260117213838.rhel9
- nodejs:24-9070020260402152654.rhel9
- nodejs24-main-24.14.1-4.hum1
- nodejs20-main-20.20.0-7.1.hum1
- nodejs:24-9070020260117213814.rhel9
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:1842
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-2026:1842 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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