{"id":"CVE-2026-56207","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-56207","summary":"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…","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: >=4.0.0.\n\n\n\nUsers are recommended to upgrade to version 4.5.2, which fixes this issue.","published":"2026-09-09T11:17:14.827","modified":"2026-09-10T20:38:05.413","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://lists.apache.org/thread/20cov78py0zqzx7dyq39ktythkwn91zs"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2026/09/08/22"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T20:38:05.413"}}