Medium5.9Red Hat & Ubuntu Linux
Denial of Service via V8 string hashing mechanism due to predictable hash collisions
CVE-2026-21717 Published Mar 30, 2026
CVE-2026-21717
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Denial of Service via V8 string hashing mechanism due to predictable hash collisions. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-328. Affected package(s): nodejs20-main, nodejs25-main, nodejs24, nodejs22-main, nodejs:24, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:7350 — update the affected packages (`sudo dnf update`).
Affected versions
- nodejs20-main-20.20.0-7.1.hum1
- nodejs25-main-25.9.0-1.hum1
- nodejs24-1:24.14.1-2.el10_1
- nodejs22-main-22.22.0-1.3.hum1
- nodejs:24-8100020260408131901.6d880403
- nodejs:24-9070020260402152654.rhel9
- nodejs24-main-24.14.1-4.hum1
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Fixed versions
- RHSA-2026:7350
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:7350 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
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