CVE-2023-22483

7.5 highEPSS 1.1%

High (7.5) in github cmark-gfm. EPSS 1.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)
CWEs: CWE-407, CWE-400
Published: 2023-01-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

github:cmark-gfm

References

https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c
https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c

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