{"id":"CVE-2026-56207","aliases":["EUVD-2026-74797","GHSA-3mmv-f538-2fpw"],"status":"published","title":"Apache Impala: SAML authentication bypass via forged bearer token","description":"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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00465,"percentile":0.40715,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2026-09-09T10:36:55Z","modified":"2026-10-28T02:30:34Z","products":[{"vendor":"apache","product":"impala"},{"vendor":"apache software foundation","product":"apache impala"}],"references":[{"url":"https://lists.apache.org/thread/20cov78py0zqzx7dyq39ktythkwn91zs","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/09/08/22","tags":["Mailing List","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56207","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3mmv-f538-2fpw"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56207.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-56207","title":"Apache Impala: SAML authentication bypass via forged bearer token","description":"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.","status":"published","published":"2026-09-09T10:36:55.238Z","modified":"2026-09-10T17:58:21.228Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T13:36:51.6229Z"}],"euvd":[{"id":"EUVD-2026-74797","description":"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.","status":"published","published":"2026-09-09T10:36:55Z","modified":"2026-09-10T17:58:21Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T17:28:23.831795Z"}],"ghsa":[{"id":"GHSA-3mmv-f538-2fpw","title":"Signature of Bearer token is not verified in last step of SAML2 authentication for Impala's hs2...","description":"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.","status":"published","published":"2026-09-09T12:32:13Z","modified":"2026-09-25T05:13:46Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T15:12:24.174061Z"}],"nvd":[{"id":"CVE-2026-56207","description":"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.","status":"published","published":"2026-09-09T11:17:14.827Z","modified":"2026-09-10T20:38:05.413Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:12:45.93749Z"}],"osv":[{"id":"CVE-2026-56207","title":"Apache Impala: SAML authentication bypass via forged bearer token","description":"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.","status":"published","published":"2026-09-09T10:36:55.238Z","modified":"2026-10-28T02:30:34.745948469Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T15:45:11.609219Z"}]}}