CVE-2023-22796

2023-02-0900:00:00

CWE-400

hackerone

www.cve.org

regular expression

dos

vulnerability

active support

catastrophic backtracking

cpu usage

memory usage

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

49.8%

JSON

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.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "https://github.com/rails/rails",
    "versions": [
      {
        "version": "6.1.7.1, 7.0.4.1",
        "status": "affected"
      }
    ]
  }
]