CVE-2023-34109

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    CVE-2023-34109

    Published: 7 Jun 2023Last Modified: 12 Aug 2026

    Summary: User input results in Unbounded resource consumption in @zxcvbn-ts/core

    Details: zxcvbn-ts is an open source password strength estimator written in typescript. This vulnerability affects users running on the nodeJS platform which are using the second argument of the zxcvbn function. It can result in an unbounded resource consumption as the user inputs array is extended with every function call. Browsers are impacted, too but a single user need to do a lot of input changes so that it affects the browser, while the node process gets the inputs of every user of a platform and can be killed that way. This problem has been patched in version 3.0.2. Users are advised to upgrade. Users unable to upgrade should stop using the second argument of the zxcvbn function and use the zxcvbnOptions.setOptions function.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34109.json, https://github.com/zxcvbn-ts/zxcvbn/security/advisories/GHSA-38hx-x5hq-5fg4, https://nvd.nist.gov/vuln/detail/CVE-2023-34109, https://github.com/zxcvbn-ts/zxcvbn/commit/3f9bed21b5d01f6f6863476822ca857355fba22f

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -ee53a5361aedf35717fd8b10f8868db432e66686

    Affected versions

    @zxcvbn-ts/[email protected]
    @zxcvbn-ts/[email protected]

    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-2023-34109 | CVE-DB