CVE-2026-49872: CWE-287 Improper Authentication in Apache Software Foundation Apache APISIX
Improper Authentication vulnerability in Apache APISIX. When the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source. This issue affects Apache APISIX: from 3.0.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.
AI Analysis
Technical Summary
CVE-2026-49872 is an improper authentication vulnerability (CWE-287) in Apache APISIX when the cas-auth plugin is used in a route. An attacker may exploit this flaw to authenticate with credentials originating from a different source, bypassing intended authentication controls. This affects Apache APISIX versions from 3.0.0 through 3.16.0. The vendor recommends upgrading to version 3.17.0, which fixes the issue.
Potential Impact
An attacker with some level of privileges can bypass intended authentication mechanisms by leveraging credentials from an unintended source, potentially gaining unauthorized access. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.3, indicating a moderate impact on confidentiality and integrity without requiring user interaction.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.17.0 or later, where this improper authentication vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor's recommendation to upgrade.
CVE-2026-49872: CWE-287 Improper Authentication in Apache Software Foundation Apache APISIX
Description
Improper Authentication vulnerability in Apache APISIX. When the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source. This issue affects Apache APISIX: from 3.0.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.
CVSS v4.0
Score 5.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-49872 is an improper authentication vulnerability (CWE-287) in Apache APISIX when the cas-auth plugin is used in a route. An attacker may exploit this flaw to authenticate with credentials originating from a different source, bypassing intended authentication controls. This affects Apache APISIX versions from 3.0.0 through 3.16.0. The vendor recommends upgrading to version 3.17.0, which fixes the issue.
Potential Impact
An attacker with some level of privileges can bypass intended authentication mechanisms by leveraging credentials from an unintended source, potentially gaining unauthorized access. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.3, indicating a moderate impact on confidentiality and integrity without requiring user interaction.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.17.0 or later, where this improper authentication vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor's recommendation to upgrade.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-02T03:54:04.009Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a354cc5f198dc38c1587787
Added to database: 06/19/2026, 14:05:57 UTC
Last enriched: 06/26/2026, 15:17:05 UTC
Last updated: 08/02/2026, 19:17:59 UTC
Views: 109
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