{"id":"BIT-apisix-2026-39998","summary":"Apache APISIX: Identity Injection via forward-auth Plugin Missing Header Cleanup","details":"Improper Input Validation vulnerability in Apache APISIX.\n\nThe attacker can take advantage of certain configuration in forward-auth plugin to spoof identity headers.\nThis issue affects Apache APISIX: from 2.12.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.","aliases":["CVE-2026-39998"],"modified":"2026-09-10T16:01:02.511556849Z","published":"2026-06-23T14:37:39.721Z","database_specific":{"cpes":["cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2026/06/19/4"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/vgkvy396010d7g6m0jrn4d3hjf2svlvv"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39998"}],"affected":[{"package":{"name":"apisix","ecosystem":"Bitnami","purl":"pkg:bitnami/apisix"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.12.0"},{"fixed":"3.17.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/apisix/BIT-apisix-2026-39998.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}