{"id":"CVE-2026-43002","aliases":["DEBIAN-CVE-2026-43002","EUVD-2026-27406","GHSA-vxvf-xvm3-p8j5","PYSEC-2026-2520","UBUNTU-CVE-2026-43002"],"status":"published","title":"OpenStack Horizon has Incorrect Behavior Order","description":"An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. This is a regression of the CVE-2014-8124 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Tracking","Vendor Advisory","web","report"]},{"url":"https://www.openwall.com/lists/oss-security/2026/05/05/7","tags":["Mailing List","Patch","Third Party Advisory","web","report"]},{"url":"https://security.openstack.org/ossa/OSSA-2026-009.html","tags":["Patch","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43002","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vxvf-xvm3-p8j5","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43002.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-43002","tags":["advisory"]},{"url":"https://github.com/openstack/horizon","tags":["package"]},{"url":"https://pypi.org/project/horizon","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-43002","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43002","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-43002","description":"An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. This is a regression of the CVE-2014-8124 fix.","status":"published","published":"2026-05-05T00:00:00Z","modified":"2026-05-06T06:05:23.992Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-696"],"updated_at":"2026-11-02T13:37:25.103021Z"}],"euvd":[{"id":"EUVD-2026-27406","description":"An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. 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