{"id":"CVE-2026-49872","aliases":["BIT-apisix-2026-49872","EUVD-2026-38026","GHSA-cxx6-444w-8847"],"status":"published","title":"Apache APISIX: Improper authentication in cas-auth plugin","description":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00526,"percentile":0.44902,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2026-06-19T13:19:34Z","modified":"2026-10-28T02:31:04Z","fixes":[{"ecosystem":"Bitnami","package":"apisix","fixed_in":["3.17.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"apisix","ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.17.0"}]}]}],"products":[{"vendor":"apache","product":"apisix"},{"vendor":"apache software foundation","product":"apache apisix"}],"references":[{"url":"https://lists.apache.org/thread/bzjpo60ygxo7kxdqf7vw3l5zw2lh6m5k","tags":["vendor-advisory","Vendor Advisory","Mailing List","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/19/15","tags":["Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49872","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-cxx6-444w-8847"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49872.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-49872","title":"Apache APISIX: Improper authentication in cas-auth plugin","description":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T13:19:34.126Z","modified":"2026-06-22T16:30:40.492Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T13:35:10.963527Z"}],"euvd":[{"id":"EUVD-2026-38026","description":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T13:19:34Z","modified":"2026-06-22T16:30:40Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:34.238696Z"}],"ghsa":[{"id":"GHSA-cxx6-444w-8847","title":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a...","description":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T15:33:17Z","modified":"2026-06-23T15:33:40Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:08:56.903887Z"}],"nvd":[{"id":"CVE-2026-49872","description":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T14:16:23.917Z","modified":"2026-10-26T11:10:00.157Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:12:24.912854Z"}],"osv":[{"id":"CVE-2026-49872","title":"Apache APISIX: Improper authentication in cas-auth plugin","description":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-19T13:19:34.126Z","modified":"2026-10-28T02:31:04.575030264Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:45:07.060148Z"},{"id":"BIT-apisix-2026-49872","title":"Apache APISIX: Improper authentication in cas-auth plugin","description":"Improper Authentication vulnerability in Apache APISIX.\n\nWhen the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","status":"published","published":"2026-06-23T14:37:52.884Z","modified":"2026-09-10T16:01:07.454542812Z","updated_at":"2026-11-02T15:28:28.267217Z"}]}}