CVE-2023-22483 LOW

CVE-2023-22483: cmark-gfm Quadratic complexity bugs may lead to a denial of service

Vendor Github
Product cmark-gfm
Weakness CWE-400
Published January 23, 2023
Last update March 10, 2025

CVSS base score

3.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 are subject to several polynomial time complexity issues in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. Various commands, when piped to cmark-gfm with large values, cause the running time to increase quadratically. These vulnerabilities have been patched in version 0.29.0.gfm.7.

Key dates

02Disclosure timeline

January 23, 2023 CVE published
March 10, 2025 Record updated