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 all versions from 2.2 up to and including 3.16.0. The authentication bypass could enable unauthorized access to protected resources. The vendor has fixed the issue in version 3.17.0.
Potential Impact
Successful exploitation allows an attacker to completely bypass authentication mechanisms, potentially gaining unauthorized access to services protected by Apache APISIX. This could lead to unauthorized actions or data exposure depending on the deployment context.
Mitigation Recommendations
Upgrade Apache APISIX to version 3.17.0 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are indicated. Patch status is confirmed by the vendor advisory recommending the 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 all versions from 2.2 up to and including 3.16.0. The authentication bypass could enable unauthorized access to protected resources. The vendor has fixed the issue in version 3.17.0.
Potential Impact
Successful exploitation allows an attacker to completely bypass authentication mechanisms, potentially gaining unauthorized access to services protected by Apache APISIX. This could lead to unauthorized actions or data exposure depending on the deployment context.
Mitigation Recommendations
Upgrade Apache APISIX to version 3.17.0 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are indicated. Patch status is confirmed by the vendor advisory recommending the 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: 06/19/2026, 14:05:51 UTC
Last enriched: 06/26/2026, 15:14:45 UTC
Last updated: 08/02/2026, 07:17:57 UTC
Views: 96
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