{"schema_version": "1.6.1", "id": "CVE-2026-39998", "summary": "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.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "2.12.0"}, {"last_affected": "2.12.0"}]}]}], "references": [{"type": "WEB", "url": "https://lists.apache.org/thread/vgkvy396010d7g6m0jrn4d3hjf2svlvv"}]}