{"id":"CVE-2026-49871","aliases":["BIT-apisix-2026-49871","EUVD-2026-38025","GHSA-rrqp-g94p-gmh7"],"status":"published","title":"Apache APISIX: cas-auth login CSRF / session injection issue","description":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\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":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00351,"percentile":0.28928,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-352"],"published":"2026-06-19T13:18:36Z","modified":"2026-10-28T02:30:48Z","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/1ozsnss0lof4gpwq763d66oxwxt3sycp","tags":["vendor-advisory","Vendor Advisory","Mailing List","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/19/14","tags":["Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49871","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-rrqp-g94p-gmh7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49871.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-49871","title":"Apache APISIX: cas-auth login CSRF / session injection issue","description":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\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":"2026-06-19T13:18:36.767Z","modified":"2026-06-22T16:21:31.946Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T13:34:59.78118Z"}],"euvd":[{"id":"EUVD-2026-38025","description":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\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":"2026-06-19T13:18:36Z","modified":"2026-06-22T16:21:31Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"updated_at":"2026-11-02T18:20:34.745289Z"}],"ghsa":[{"id":"GHSA-rrqp-g94p-gmh7","title":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default...","description":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\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":"2026-06-23T15:33:39Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/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":"low"},{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:08:56.903887Z"}],"nvd":[{"id":"CVE-2026-49871","description":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\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":"2026-06-19T14:16:23.8Z","modified":"2026-10-26T11:10:00.157Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/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":"low","assessor":"secondary"},{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"primary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:12:24.912854Z"}],"osv":[{"id":"CVE-2026-49871","title":"Apache APISIX: cas-auth login CSRF / session injection issue","description":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\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":"2026-06-19T13:18:36.767Z","modified":"2026-10-28T02:30:48.67867493Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:45:07.060148Z"},{"id":"BIT-apisix-2026-49871","title":"Apache APISIX: cas-auth login CSRF / session injection issue","description":"Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\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":"2026-06-23T14:37:51.705Z","modified":"2026-09-10T16:01:08.17801912Z","updated_at":"2026-11-02T15:28:28.267217Z"}]}}