Security vulnerabilities and automated fixes for cve 2026 4926 issues
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A high-severity denial of service vulnerability in the `path-to-regexp` package (CVE-2026-4926) could allow attackers to craft malicious regular expressions that consume excessive CPU resources. The fix upgrades from version 8.2.0 to 8.4.0, which hardens regex handling and prevents ReDoS (Regular Expression Denial of Service) attacks in Express applications.