CVE-2023-22796

HighCVSS 7.5/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400 CWE-1333

Affected software

No affected versions have been published.

Timeline

Published: Feb 9, 2023
Last modified: Oct 24, 2026
NVD status: Modified

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