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Vulnerability details: VCID-n8rw-e9kt-77em
Vulnerability ID VCID-n8rw-e9kt-77em
Aliases CVE-2023-22484
Summary 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 a polynomial time complexity issue in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. This vulnerability has been patched in 0.29.0.gfm.7.
Status Published
Exploitability 0.5
Weighted Severity 3.1
Risk 1.6
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-400 Uncontrolled Resource Consumption
CWE-407 Inefficient Algorithmic Complexity
System Score Found at
epss 0.0018 https://api.first.org/data/v1/epss?cve=CVE-2023-22484
epss 0.0018 https://api.first.org/data/v1/epss?cve=CVE-2023-22484
epss 0.0018 https://api.first.org/data/v1/epss?cve=CVE-2023-22484
epss 0.00226 https://api.first.org/data/v1/epss?cve=CVE-2023-22484
cvssv3.1 3.5 https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r
ssvc Track https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-22484
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-22484
1033110 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1033110
1033111 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1033111
1033112 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1033112
1033113 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1033113
GHSA-24f7-9frr-5h2r https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r
USN-7319-1 https://usn.ubuntu.com/7319-1/
No exploits are available.
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-10T21:01:30Z/ Found at https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r
Exploit Prediction Scoring System (EPSS)
Percentile 0.39601
EPSS Score 0.0018
Published At June 12, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:29:29.144110+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2023/22xxx/CVE-2023-22484.json 38.6.0