CVE-2023-22483
highpriority · track · 30EPSS 0.011 · 65 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.5–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (2)
Products and version ranges known to be affected.
also known as (2)
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sources
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references (4)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-22483/cnnvd
- https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6ccnnvd
- https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6cenisa_euvd
- https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6cExploitThird Party Advisorynvd
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