CVE-2022-39227

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    CVE-2022-39227

    Published: 23 Sept 2022Last Modified: 12 Aug 2026

    Summary: Python-jwt subject to Authentication Bypass by Spoofing

    Details: python-jwt is a module for generating and verifying JSON Web Tokens. Versions prior to 3.3.4 are subject to Authentication Bypass by Spoofing, resulting in identity spoofing, session hijacking or authentication bypass. An attacker who obtains a JWT can arbitrarily forge its contents without knowing the secret key. Depending on the application, this may for example enable the attacker to spoof other user's identities, hijack their sessions, or bypass authentication. Users should upgrade to version 3.3.4. There are no known workarounds.

    References: https://www.vicarius.io/vsociety/posts/authentication-bypass-in-python-jwt, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39227.json, https://github.com/davedoesdev/python-jwt/security/advisories/GHSA-5p8v-58qm-c7fp, https://github.com/pypa/advisory-database/blob/main/vulns/python-jwt/PYSEC-2022-259.yaml, https://nvd.nist.gov/vuln/detail/CVE-2022-39227, https://github.com/davedoesdev/python-jwt/commit/88ad9e67c53aa5f7c43ec4aa52ed34b7930068c9

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -88ad9e67c53aa5f7c43ec4aa52ed34b7930068c9

    Affected versions

    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-2022-39227 | CVE-DB