PYSEC-2026-753

    Dashboard / Vulnerabilities / PYSEC-2026-753

    PYSEC-2026-753

    Published: 2 Jul 2026Last Modified: 6 Jul 2026

    Summary: Exposure of Sensitive Information to an Unauthorized Actor in OpenStack tripleo-heat-templates

    Details: An information exposure flaw in openstack-tripleo-heat-templates allows an external user to discover the internal IP or hostname. An attacker could exploit this by checking the `www_authenticate_uri parameter` (which is visible to all end users) in configuration files. This would give sensitive information which may aid in additional system exploitation. A patch is available on the `master` branch and anticipated to be part of version 11.6.1.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-4180, https://github.com/openstack/tripleo-heat-templates/commit/160936df134a471cfd245bd60964046027a571ea, https://github.com/openstack/tripleo-heat-templates/commit/2b9461e97fc5c4ceb0848d1cc4484f656bb85515, https://bugs.launchpad.net/tripleo/+bug/1955397, https://bugzilla.redhat.com/show_bug.cgi?id=2035793, https://github.com/openstack/tripleo-heat-templates, https://pypi.org/project/tripleo-heat-templates, https://github.com/advisories/GHSA-hm3x-jwwf-jpr9

    Affected packages

    Package

    Name: tripleo-heat-templates

    Purl: pkg:pypi/tripleo-heat-templates

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -11.6.1

    Affected versions

    0.5.6

    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-2026-753 | CVE-DB