PT-2026-50880 · Apache · Apache Apisix

Marco Capuano · Published 2026-06-19 · Updated 2026-06-19 · CVE-2026-39999

NVD

CVSS v4.0

7.0

High

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Authentication Bypass by Spoofing

Weakness Enumeration

CWE-290

Related Identifiers

CVE-2026-39999

Affected Products

Apache Apisix

References · 2

• https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxrdw4mojq · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-39999 · Security Note