CVE-2023-22486

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 contain a polynomial time complexity issue in handle_close_bracket that may lead to unbounded resource exhaustion and subsequent denial of service. This vulnerability has been patched in 0.29.0.gfm.7.

CVSS v3.1

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

CVSS v3.1

3.5 LOWCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS

1.11% chance of exploitation in the next 30 days, 64th percentile

Published

2023-01-24

Updated

2025-03-10

Proof-of-concept exploits (1)

• github/cmark-gfm/security/advisories/GHSA-r572-jvj2-3m8p

References

• CVE Record
• NVD entry

Related

• CVE-2023-22485
• CVE-2023-22490
• CVE-2023-22484
• CVE-2023-22493
• CVE-2023-22483
• CVE-2023-22496