{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "26.0.0"
              },
              {
                "fixed": "26.0.4"
              },
              {
                "introduced": "27.0.0"
              },
              {
                "fixed": "27.0.3"
              },
              {
                "introduced": "28.0.0"
              },
              {
                "fixed": "28.0.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "96a445dee8363976333aed121358a4b86f9428e0"
            },
            {
              "fixed": "68346f102f34be9345e8e590b68622101a9c4922"
            },
            {
              "introduced": "46f4ef447537d80bff2bb64da6a61fff40e8fcc3"
            },
            {
              "fixed": "6e846c1a2d5ad40f767e87b6c8ddb14b509ba5d7"
            },
            {
              "introduced": "eb9dd526a3c4ba0ffbb69d06cc387c86ca755d42"
            },
            {
              "fixed": "8d11b5e2fd0f72840fc827ffe4ab4f3fa89221d0"
            }
          ],
          "repo": "https://opendev.org/openstack/neutron",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49299.json"
  },
  "details": "In OpenStack Neutron before 28.0.1, the tagging controller enforces plural policy action names on single-tag write operations while the defined policy rules use singular names. The mismatched names evaluate as allowed under the default policy, permitting a project reader to create and update tags on same-project resources. Deployments running Neutron 26.0.0 or later are affected.",
  "id": "CVE-2026-49299",
  "modified": "2026-07-08T05:38:31.219595642Z",
  "published": "2026-05-28T21:53:03.408Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/02/7"
    },
    {
      "type": "WEB",
      "url": "https://opendev.org/openstack/neutron"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/05/28/8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49299.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49299"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/bugs/2150132"
    },
    {
      "type": "FIX",
      "url": "https://review.opendev.org/c/openstack/neutron/+/989099"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ]
}