PYSEC-2026-854

    Dashboard / Vulnerabilities / PYSEC-2026-854

    PYSEC-2026-854

    Published: 6 Jul 2026Last Modified: 7 Jul 2026

    Summary: OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism

    Details: The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via a crafted DHCP discovery message.

    References: https://nvd.nist.gov/vuln/detail/CVE-2016-5362, https://access.redhat.com/errata/RHSA-2016:1473, https://access.redhat.com/errata/RHSA-2016:1474, https://bugs.launchpad.net/neutron/+bug/1558658, https://github.com/openstack/neutron, https://review.openstack.org/#/c/300202, https://review.openstack.org/#/c/303563, https://review.openstack.org/#/c/303572, https://security.openstack.org/ossa/OSSA-2016-009.html, http://www.openwall.com/lists/oss-security/2016/06/10/5, http://www.openwall.com/lists/oss-security/2016/06/10/6, https://pypi.org/project/neutron, https://github.com/advisories/GHSA-qpwc-p365-pqrr

    Affected packages

    Package

    Name: neutron

    Purl: pkg:pypi/neutron

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7.0.5

    Affected versions

    0.0

    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-2026-854 | CVE-DB