NVD Vulnerability Detail
Search Exploit, PoC
CVE-2026-39999
Summary

Authentication Bypass by Spoofing vulnerability in Apache APISIX.

The attacker can completely bypass authentication capitalising on certain configurations of jwt-auth plugin.
This issue affects Apache APISIX: from v2.2 through v3.16.0.

Users are recommended to upgrade to version v3.17.0, which fixes the issue.

Publication Date June 19, 2026, 11:16 p.m.
Registration Date June 27, 2026, 4:04 a.m.
Last Update June 24, 2026, 12:08 a.m.
CVSS3.1 : CRITICAL
スコア 9.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:* 2.2 3.17.0
Related information, measures and tools
Common Vulnerabilities List