GHSA-86rg-pf4c-5grg

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    GHSA-86rg-pf4c-5grg

    Published: 4 Jan 2024Last Modified: 1 Oct 2025
    Aliases:
    CVE-2023-6944

    Summary: @backstage/backend-app-api leaks GitLab access tokens

    Details: A flaw was found in the Red Hat Developer Hub (RHDH). The catalog-import function leaks GitLab access tokens on the frontend when the base64 encoded GitLab token includes a newline at the end of the string. The sanitized error can display on the frontend, including the raw access token. Upon gaining access to this token and depending on permissions, an attacker could push malicious code to repositories, delete resources in Git, revoke or generate new keys, and sign code illegitimately.

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-6944, https://github.com/backstage/backstage/issues/21503, https://github.com/backstage/backstage/pull/21582, https://github.com/backstage/backstage/commit/0382db60f6c8e8715a702bde6408ad10a48d8e11, https://access.redhat.com/errata/RHBA-2024:5869, https://access.redhat.com/security/cve/CVE-2023-6944, https://bugzilla.redhat.com/show_bug.cgi?id=2255204, https://github.com/backstage/backstage, https://github.com/backstage/backstage/blob/master/docs/releases/v1.21.0-next.2-changelog.md, https://www.cve.org/CVERecord?id=CVE-2023-6944

    Affected packages

    Package

    Name: @backstage/backend-app-api

    Purl: pkg:npm/%40backstage/backend-app-api

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.5.9-next.1

    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
    GHSA-86rg-pf4c-5grg | CVE-DB