CVE-2026-39999

Apache APISIX: JWT Algorithm Confusion allows authentication bypass

CVSS 7 HIGHEPSS 0.4%CWE-290

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.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Produtos afetados

Apache Software Foundation · Apache APISIX

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Referências

https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxrdw4mojq http://www.openwall.com/lists/oss-security/2026/06/19/5