{"id":"CVE-2026-56207","summary":"Apache Impala: SAML authentication bypass via forged bearer token","details":"Signature of Bearer token is not verified in last step of SAML2 authentication for Impala's hs2-http interface, allowing altering user name and acting as another user.\n\n\n\nThis issue affects Apache Impala: \u003e=4.0.0.\n\n\n\nUsers are recommended to upgrade to version 4.5.2, which fixes this issue.","modified":"2026-09-12T03:46:44.939392944Z","published":"2026-09-09T10:36:55.238Z","database_specific":{"cwe_ids":["CWE-347"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56207.json","unresolved_ranges":[{"extracted_events":[{"introduced":"4.0.0"},{"last_affected":"4.5.1"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"apache"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/09/08/22"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56207.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/20cov78py0zqzx7dyq39ktythkwn91zs"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56207"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/impala","events":[{"introduced":"1950394e56927cac2f101324fa0397aa3d378f2d"},{"fixed":"078470bb0471336fa7715cf9b72a5d713fd2751d"}],"database_specific":{"cpe":"cpe:2.3:a:apache:impala:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0.0"},{"fixed":"4.5.2"}],"source":"CPE_RANGE"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56207.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:H/I:H/A:H"}]}