CVE-2026-45819: Web-Platform-Dx Baseline-Browser-Mapping

Medium severity, CVSS 6.6. EPSS: 0.5% chance of exploitation in the next 30 days.

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Affected products

• Web-Platform-Dx Baseline-Browser-Mapping: from 2.0.0, before 2.11.0 (fixed in 2.11.0)

Published 2026-08-13. Last modified 2026-09-09.