PYSEC-2026-875

    Dashboard / Vulnerabilities / PYSEC-2026-875

    PYSEC-2026-875

    Published: 6 Jul 2026Last Modified: 7 Jul 2026

    Summary: OpenStack Compute (Nova) vulnerable to denial of service via XML Entity Expansion attack

    Details: The security group extension in OpenStack Compute (Nova) Grizzly 2013.1.3, Havana before havana-3, and earlier allows remote attackers to cause a denial of service (resource consumption and crash) via an XML Entity Expansion (XEE) attack. NOTE: this issue is due to an incomplete fix for CVE-2013-1664.

    References: https://nvd.nist.gov/vuln/detail/CVE-2013-4179, https://access.redhat.com/errata/RHSA-2013:1199, https://access.redhat.com/security/cve/CVE-2013-4179, https://bugs.launchpad.net/ossa/+bug/1190229, https://bugzilla.redhat.com/show_bug.cgi?id=989707, https://opendev.org/openstack/nova, http://rhn.redhat.com/errata/RHSA-2013-1199.html, http://www.ubuntu.com/usn/USN-2005-1, https://pypi.org/project/nova, https://github.com/advisories/GHSA-j6xh-q826-55jw

    Affected packages

    Package

    Name: nova

    Purl: pkg:pypi/nova

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2013.2

    Affected versions

    15.1.5

    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-2026-875 | CVE-DB