CVE-2023-26920

    Dashboard / Vulnerabilities / CVE-2023-26920

    CVE-2023-26920

    Published: 12 Dec 2023Last Modified: 28 Oct 2026

    Summary:

    Details: fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.

    References: https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26920.json, https://github.com/advisories/GHSA-793h-6f7r-6qvm, https://nvd.nist.gov/vuln/detail/CVE-2023-26920, https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -2b032a4f799c63d83991e4f992f1c68e4dd05804

    Affected versions

    v4.1.1
    v4.1.0

    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-2023-26920 | CVE-DB