PYSEC-2026-853

Vulnerability from pysec - Published: 2026-07-06 08:03 - Updated: 2026-07-07 11:30
VLAI
Details

Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by changing the device owner of a port to start with network: before the security group rules are applied.

Impacted products
Name purl
neutron pkg:pypi/neutron
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "neutron",
        "purl": "pkg:pypi/neutron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2015-5240",
    "GHSA-hhpj-6pj7-wpx5"
  ],
  "details": "Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by changing the device owner of a port to start with network: before the security group rules are applied.",
  "id": "PYSEC-2026-853",
  "modified": "2026-07-07T11:30:48.203021Z",
  "published": "2026-07-06T08:03:25.638146Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5240"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openstack/neutron/commit/767cea23de44a963c6793ffe30ea5c6827d27a38"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openstack/neutron/commit/bbca973986fdc99eae9d1b2545e8246c0b2be2e2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openstack/neutron/commit/fdc3431ccd219accf6a795079d9b67b8656eed8e"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2015:1909"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2015-5240"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/neutron/+bug/1489111"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1258458"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openstack/neutron"
    },
    {
      "type": "WEB",
      "url": "https://security.openstack.org/ossa/OSSA-2015-018.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1909.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2015/09/08/9"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/neutron"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-hhpj-6pj7-wpx5"
    }
  ],
  "summary": "OpenStack Neutron Race condition vulnerability"
}



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