CVE-2023-26485 — Uncontrolled Resource Consumption in Github Cmark-gfm
Severity
7.5HIGHNVD
OSV6.5
EPSS
0.4%
top 41.17%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 31
Latest updateMar 3
Description
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `_` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. Users unable to upgrade should validate that their input comes from trust…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages7 packages
Patches
🔴Vulnerability Details
4GHSA▶
Commonmarker vulnerable to to several quadratic complexity bugs that may lead to denial of service↗2023-04-11
OSV▶
Commonmarker vulnerable to to several quadratic complexity bugs that may lead to denial of service↗2023-04-11
OSV▶
CVE-2023-26485: cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C↗2023-03-31