PYSEC-2026-861

    Dashboard / Vulnerabilities / PYSEC-2026-861

    PYSEC-2026-861

    Published: 6 Jul 2026Last Modified: 7 Jul 2026

    Summary: OpenStack Nova instance migration process does not stop when instance is deleted

    Details: OpenStack Compute (nova) 2015.1 through 2015.1.1, 2014.2.3, and earlier does not stop the migration process when the instance is deleted, which allows remote authenticated users to cause a denial of service (disk, network, and other resource consumption) by resizing and then deleting an instance.

    References: https://nvd.nist.gov/vuln/detail/CVE-2015-3241, https://github.com/openstack/nova/commit/7ab75d5b0b75fc3426323bef19bf436a258b9707, https://github.com/openstack/nova/commit/b5020a047fc487f35b76fc05f31e52665a1afda1, https://github.com/openstack/nova/commit/bf23643e36c8764b4bd532546a2cc04385fe0cff, https://access.redhat.com/errata/RHSA-2015:1723, https://access.redhat.com/errata/RHSA-2015:1898, https://access.redhat.com/security/cve/CVE-2015-3241, https://bugzilla.redhat.com/show_bug.cgi?id=1232782, https://github.com/openstack/nova, https://github.com/openstack/ossa/blob/482576204dec96f580817b119e3166d71c757731/ossa/OSSA-2015-015.yaml, https://launchpad.net/bugs/1387543, https://security.openstack.org/ossa/OSSA-2015-015.html, http://rhn.redhat.com/errata/RHSA-2015-1723.html, http://rhn.redhat.com/errata/RHSA-2015-1898.html, http://www.securityfocus.com/bid/75372, https://pypi.org/project/nova, https://github.com/advisories/GHSA-3vx7-xff6-h2vx

    Affected packages

    Package

    Name: nova

    Purl: pkg:pypi/nova

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -12.0.0.0b3

    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-2026-861 | CVE-DB