{"id":"CVE-2026-43002","details":"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.","aliases":["GHSA-vxvf-xvm3-p8j5","PYSEC-2026-2520"],"modified":"2026-09-12T03:46:21.992378710Z","published":"2026-05-05T00:00:00Z","database_specific":{"unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"25.6.0"},{"fixed":"25.7.3"}]},{"extracted_events":[{"introduced":"25.6.0"},{"fixed":"25.7.3"}],"source":"CPE_FIELD"},{"extracted_events":[{"introduced":"25.7"},{"fixed":"25.7.3"}],"source":"DESCRIPTION"}],"cna_assigner":"mitre","cwe_ids":["CWE-696"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43002.json"},"references":[{"type":"WEB","url":"https://bugs.launchpad.net/horizon/+bug/2150331"},{"type":"WEB","url":"https://security.openstack.org/ossa/OSSA-2026-009.html"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/05/05/7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43002.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43002"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openstack/horizon","events":[{"introduced":"d95f224756f5060ec3244d6f346d5d710116f482"},{"fixed":"0a4439556517cf67be0aa949b6551a14e409af75"}],"database_specific":{"cpe":"cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"25.6.0"},{"fixed":"25.7.3"}],"source":"CPE_RANGE"}}],"versions":["25.7.2","25.7.1","25.7.0","25.6.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43002.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}