CVE-2023-22796

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.

• CWE-400
• CWE-1333

• https://discuss.rubyonrails.org/t/cve-2023-22796-possible-redos-based-dos-vulnerability-in-active-supports-underscore/82116Patch, Vendor Advisory
• https://security.netapp.com/advisory/ntap-20240202-0009/
• https://www.debian.org/security/2023/dsa-5372
• https://discuss.rubyonrails.org/t/cve-2023-22796-possible-redos-based-dos-vulnerability-in-active-supports-underscore/82116Patch, Vendor Advisory
• https://security.netapp.com/advisory/ntap-20240202-0009/
• https://www.debian.org/security/2023/dsa-5372

Published

Feb 9, 2023

Last Modified

Jun 17, 2026

Status

Modified

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