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CVE-2023-22483

LowCVSS 3.5 / 10
Published Jan 23, 2023·Last modified Mar 14, 2026
Affected Components(26)
github/cmark-gfm
0.28.3.gfm.16
github/cmark-gfm
0.28.0.gfm.10
github/cmark-gfm
0.28.0.gfm.8
1 / 9
Description

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.

Risk Scores
Base Score
3.5

The vulnerability can be exploited over a local network, such as Wi-Fi. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the availability of the system.

Threat Intelligence
3.2

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.94%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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