Authentication Bypass Vulnerability in Apache APISIX by Apache
CVE-2026-39999

7HIGH

Key Information:

Vendor

Apache
Status
Apache Apisix
Vendor
CVE Published:
19 June 2026

What is CVE-2026-39999?

A security vulnerability in Apache APISIX allows an attacker to bypass authentication by exploiting specific misconfigurations within the jwt-auth plugin. This flaw compromises security controls, enabling unauthorized access to systems. Users should promptly upgrade to version 3.17.0 to mitigate this vulnerability and ensure the integrity of their APIs.

Affected Version(s)

Apache APISIX 2.2 <= 3.16.0

References

https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxr...
vendor-advisory

CVSS V4

Score:
7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marco Capuano
.