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CVE-2023-22795

Published: 2023-02-09T20:15Z
Last Modified: 2024-11-21T07:45Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
A regular expression based DoS vulnerability in Action Dispatch <6.1.7.1 and <7.0.4.1 related to the If-None-Match header. A specially crafted HTTP If-None-Match header can cause the regular expression engine to enter a state of catastrophic backtracking, when on a version of Ruby below 3.2.0. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability All users running an affected release should either upgrade or use one of the workarounds immediately. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt