Medium6.5Red Hat & Ubuntu Linux
Prototype pollution allows deletion of built-in prototype properties via array path bypass
CVE-2026-2950 Published Mar 31, 2026
CVE-2026-2950
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Prototype pollution allows deletion of built-in prototype properties via array path bypass. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-915. Affected package(s): nodejs20-main, rhdh/rhdh-hub-rhel9:1780930740, nodejs25-main, yarnpkg-main. Resolved in Red Hat advisory RHSA-2026:7655 — update the affected packages (`sudo dnf update`).
Affected versions
- nodejs20-main-20.20.2-1.hum1
- rhdh/rhdh-hub-rhel9:1780930740
- nodejs25-main-25.9.0-1.1.hum1
- yarnpkg-main-1.22.22-18.1.hum1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:7655
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:7655 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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