BIT-authentik-2023-39522

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    BIT-authentik-2023-39522

    Published: 16 Apr 2026Last Modified: 8 Sept 2026

    Summary: Username enumeration attack in goauthentik

    Details: goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage an attacker is able to determine if a username exists. Only setups configured with a recovery flow are impacted by this. Anyone with a user account on a system with the recovery flow described above is susceptible to having their username/email revealed as existing. An attacker can easily enumerate and check users' existence using the recovery flow, as a clear message is shown when a user doesn't exist. Depending on configuration this can either be done by username, email, or both. This issue has been addressed in versions 2023.5.6 and 2023.6.2. Users are advised to upgrade. There are no known workarounds for this issue.

    References: https://github.com/goauthentik/authentik/commit/aa874dd92a770d5f8cd8f265b7cdd31cd73a4599, https://github.com/goauthentik/authentik/security/advisories/GHSA-vmf9-6pcv-xr87, https://nvd.nist.gov/vuln/detail/CVE-2023-39522

    Affected packages

    Package

    Name: authentik

    Purl: pkg:bitnami/authentik

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2023.5.6

    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
    BIT-authentik-2023-39522 | CVE-DB