{"id":"CVE-2026-82806","aliases":["BIT-apisix-2026-82806","EUVD-2026-90764","GHSA-2252-4rmp-q4vj"],"status":"published","title":"Apache APISIX: cross-request permission pollution via static permission list mutation","description":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00294,"percentile":0.22216,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-488"],"published":"2026-10-01T10:58:32Z","modified":"2026-10-09T12:00:05Z","fixes":[{"ecosystem":"Bitnami","package":"apisix","fixed_in":["3.7.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"apisix","ranges":[{"type":"SEMVER","events":[{"introduced":"2.3.0"},{"fixed":"3.7.0"}]}]}],"products":[{"vendor":"apache software foundation","product":"apache apisix"}],"references":[{"url":"https://lists.apache.org/thread.html/wvkv2b4oy2fh9v79d30gtsy0bhqmzcdd","tags":["vendor-advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2026/10/01/3","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82806","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2252-4rmp-q4vj"}],"sources":{"cve":[{"id":"CVE-2026-82806","title":"Apache APISIX: cross-request permission pollution via static permission list mutation","description":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.","status":"published","published":"2026-10-01T10:58:32.654Z","modified":"2026-10-01T14:57:12.282Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-488"],"updated_at":"2026-11-02T13:40:46.161838Z"}],"euvd":[{"id":"EUVD-2026-90764","description":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.","status":"published","published":"2026-10-01T10:58:32Z","modified":"2026-10-01T14:57:12Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:45.695512Z"}],"ghsa":[{"id":"GHSA-2252-4rmp-q4vj","title":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects...","description":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.","status":"published","published":"2026-10-01T12:31:19Z","modified":"2026-10-01T15:30:40Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-488"],"updated_at":"2026-11-02T15:12:40.571849Z"}],"nvd":[{"id":"CVE-2026-82806","description":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.","status":"published","published":"2026-10-01T11:17:28.19Z","modified":"2026-10-01T15:17:32.303Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-488"],"updated_at":"2026-11-02T14:12:53.41762Z"}],"osv":[{"id":"BIT-apisix-2026-82806","title":"Apache APISIX: cross-request permission pollution via static permission list mutation","description":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.","status":"published","published":"2026-10-09T10:43:46.734Z","modified":"2026-10-09T12:00:05.382953962Z","updated_at":"2026-11-02T15:28:28.267217Z"}]}}