CVE-2023-4043

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    CVE-2023-4043

    Published: 3 Nov 2023Last Modified: 12 Aug 2026

    Summary: Parsson DoS when parsing numbers from untrusted sources

    Details: In Eclipse Parsson before versions 1.1.4 and 1.0.5, Parsing JSON from untrusted sources can lead malicious actors to exploit the fact that the built-in support for parsing numbers with large scale in Java has a number of edge cases where the input text of a number can lead to much larger processing time than one would expect. To mitigate the risk, parsson put in place a size limit for the numbers as well as their scale.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4043.json, https://nvd.nist.gov/vuln/detail/CVE-2023-4043, https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/13, https://github.com/eclipse-ee4j/parsson/pull/100

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -63b1d7393c539921853db1ddc0d92882c5931ae1

    Affected versions

    1.0.0

    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-2023-4043 | CVE-DB