PYSEC-2026-864

    Dashboard / Vulnerabilities / PYSEC-2026-864

    PYSEC-2026-864

    Published: 6 Jul 2026Last Modified: 7 Jul 2026

    Summary: OpenStack Nova host data access through resize/migration

    Details: The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.

    References: https://nvd.nist.gov/vuln/detail/CVE-2016-2140, https://github.com/openstack/nova/commit/0b194187db9da28225cb5e62be3b45aff5a1c793, https://github.com/openstack/nova/commit/116b1210ab772c55d1ed1f715687d83877c92701, https://github.com/openstack/nova/commit/f302bf04ab5dda89cf8ceaeed309006da90c0666, https://access.redhat.com/errata/RHSA-2016:0363, https://access.redhat.com/errata/RHSA-2016:0364, https://access.redhat.com/errata/RHSA-2016:0365, https://access.redhat.com/errata/RHSA-2016:0366, https://access.redhat.com/security/cve/CVE-2016-2140, https://bugs.launchpad.net/nova/+bug/1548450, https://bugzilla.redhat.com/show_bug.cgi?id=1313454, https://github.com/openstack/nova, https://security.openstack.org/ossa/OSSA-2016-007.html, http://seclists.org/oss-sec/2016/q1/563, http://www.openwall.com/lists/oss-security/2016/03/08/6, http://www.securityfocus.com/bid/84277, https://pypi.org/project/nova, https://github.com/advisories/GHSA-49jv-37hm-6gfp

    Affected packages

    Package

    Name: nova

    Purl: pkg:pypi/nova

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 12.0.0
    Fixed -12.0.3

    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-2026-864 | CVE-DB