CVE-2026-39999: CWE-290 Authentication Bypass by Spoofing in Apache Software Foundation Apache APISIX
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.
AI Analysis
Technical Summary
This vulnerability in Apache APISIX allows an attacker to bypass authentication by exploiting specific configurations of the jwt-auth plugin. It affects Apache APISIX versions starting from 2.2 up to and including 3.16.0. The authentication bypass could enable unauthorized access to protected resources. The issue is resolved in version 3.17.0, which users should upgrade to in order to mitigate the risk.
Potential Impact
An attacker can completely bypass authentication mechanisms in affected versions of Apache APISIX when the jwt-auth plugin is configured in certain ways. This could lead to unauthorized access to services protected by APISIX, potentially exposing sensitive data or allowing further attacks within the environment.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.17.0 or later, where this authentication bypass vulnerability has been fixed. No other mitigation or temporary workaround is indicated by the vendor advisory. Patch status is confirmed by the recommendation to upgrade.
CVE-2026-39999: CWE-290 Authentication Bypass by Spoofing in Apache Software Foundation Apache APISIX
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 v4.0
Score 7.0high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apache APISIX allows an attacker to bypass authentication by exploiting specific configurations of the jwt-auth plugin. It affects Apache APISIX versions starting from 2.2 up to and including 3.16.0. The authentication bypass could enable unauthorized access to protected resources. The issue is resolved in version 3.17.0, which users should upgrade to in order to mitigate the risk.
Potential Impact
An attacker can completely bypass authentication mechanisms in affected versions of Apache APISIX when the jwt-auth plugin is configured in certain ways. This could lead to unauthorized access to services protected by APISIX, potentially exposing sensitive data or allowing further attacks within the environment.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.17.0 or later, where this authentication bypass vulnerability has been fixed. No other mitigation or temporary workaround is indicated by the vendor advisory. Patch status is confirmed by the recommendation to upgrade.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-04-08T02:56:44.658Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a354cbff198dc38c158738b
Added to database: 6/19/2026, 2:05:51 PM
Last enriched: 6/19/2026, 2:20:31 PM
Last updated: 6/19/2026, 9:45:36 PM
Views: 3
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