CVE-2023-22483

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.