CVE-2026-39999

HIGH EPSS 30.5%
Published Jun 19, 20261w ago · Modified Jun 23, 20266d ago
7.0 CVSS 4.0
High
Find Similar
Published Jun 19, 2026 1w ago
Last Modified Jun 23, 2026 6d ago

Description

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 Details

Base Score
7.0
Exploitability
—
Impact
—
Vector string
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/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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
30.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-290

Affected Products 1

VendorProductVersionRange
apacheapisix*≥2.2  –  <3.17.0

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.