CVE-2026-39999

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 v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxrdw4mojq	Vendor Advisory Mailing List
http://www.openwall.com/lists/oss-security/2026/06/19/5	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*

History

23 Jun 2026, 15:08

Type	Values Removed	Values Added
References	~~() https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxrdw4mojq -~~	() https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxrdw4mojq - Vendor Advisory, Mailing List
References	~~() http://www.openwall.com/lists/oss-security/2026/06/19/5 -~~	() http://www.openwall.com/lists/oss-security/2026/06/19/5 - Third Party Advisory
First Time		Apache apisix Apache
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.1
CPE		cpe:2.3:a:apache:apisix::::::::

19 Jun 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 14:16

Updated : 2026-06-23 15:08

NVD link : CVE-2026-39999

Mitre link : CVE-2026-39999

CVE.ORG link : CVE-2026-39999

JSON object : View

Products Affected

apache

apisix

CWE

CWE-290

Authentication Bypass by Spoofing

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