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  1. CVE-2023-22796 7.5 Élevée

    https://github.com/rails/rails · Activesupport project activesupport

    A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability.