PYSEC-2026-821

    Dashboard / Vulnerabilities / PYSEC-2026-821

    PYSEC-2026-821

    Published: 6 Jul 2026Last Modified: 7 Jul 2026

    Summary: OpenStack Horizon Cross-site Scripting (XSS)

    Details: OpenStack Horizon 9.x through 9.1.1, 10.x through 10.0.2, and 11.0.0 allows remote authenticated administrators to conduct XSS attacks via a crafted federation mapping.

    References: https://nvd.nist.gov/vuln/detail/CVE-2017-7400, https://access.redhat.com/errata/RHSA-2017:1598, https://access.redhat.com/errata/RHSA-2017:1739, https://launchpad.net/bugs/1667086, https://opendev.org/openstack/horizon/commit/1407cfe53144146b29679de21f28c952282043ae, https://opendev.org/openstack/horizon/commit/511b325b45b6bd7a88bb6df1a4639b80d0121277, https://opendev.org/openstack/horizon/commit/a835dbfbaa2c70329c08d4b8429d49315dc6d651, https://opendev.org/openstack/horizon/commit/ce80bb6fec3cb0262728e7ae8b9d695cf832e5bf, http://www.securityfocus.com/bid/97324, https://pypi.org/project/horizon, https://github.com/advisories/GHSA-47vp-44v9-rhgq

    Affected packages

    Package

    Name: horizon

    Purl: pkg:pypi/horizon

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 9.0
    Fixed -9.1.2

    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
    PYSEC-2026-821 | CVE-DB