CVE-2023-22484

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    CVE-2023-22484

    Published: 23 Jan 2023Last Modified: 28 Oct 2026

    Summary: Inefficient Quadratic complexity bug in handle_pointy_brace may lead to a denial of service

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/22xxx/CVE-2023-22484.json, https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r, https://nvd.nist.gov/vuln/detail/CVE-2023-22484

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -57d5e093ef801f54bf4174c900f7a863599bb47d

    Affected versions

    0.29.0.gfm.6
    0.29.0.gfm.5
    0.29.0.gfm.4
    0.29.0.gfm.3
    0.29.0.gfm.2
    0.29.0.gfm.1
    0.29.0.gfm.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-22484 | CVE-DB