CVE-2026-49231: CWE-290 Authentication Bypass by Spoofing in Apache Software Foundation Apache APISIX
Authentication Bypass by Spoofing vulnerability in opa plugin. An attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin. This could allow the attacker to assume higher privileges on the upstream service. This issue affects Apache APISIX: from 3.5.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.
AI Analysis
Technical Summary
This vulnerability in Apache APISIX's opa plugin involves an authentication bypass by spoofing identity headers. When the opa plugin is configured with non-default settings, an attacker can relay spoofed headers to upstream services, potentially assuming elevated privileges. The affected versions range from 3.5.0 through 3.16.0. The issue is fixed in version 3.17.0.
Potential Impact
An attacker exploiting this vulnerability could bypass authentication controls by spoofing identity headers, allowing them to assume higher privileges on upstream services. This could lead to unauthorized access or actions within those services. The CVSS score is low (2.3), indicating limited impact or exploitability under typical conditions.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.17.0 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor advisory recommending the upgrade.
CVE-2026-49231: CWE-290 Authentication Bypass by Spoofing in Apache Software Foundation Apache APISIX
Description
Authentication Bypass by Spoofing vulnerability in opa plugin. An attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin. This could allow the attacker to assume higher privileges on the upstream service. This issue affects Apache APISIX: from 3.5.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.
CVSS v4.0
Score 2.3low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apache APISIX's opa plugin involves an authentication bypass by spoofing identity headers. When the opa plugin is configured with non-default settings, an attacker can relay spoofed headers to upstream services, potentially assuming elevated privileges. The affected versions range from 3.5.0 through 3.16.0. The issue is fixed in version 3.17.0.
Potential Impact
An attacker exploiting this vulnerability could bypass authentication controls by spoofing identity headers, allowing them to assume higher privileges on upstream services. This could lead to unauthorized access or actions within those services. The CVSS score is low (2.3), indicating limited impact or exploitability under typical conditions.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.17.0 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor advisory recommending the upgrade.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-28T06:52:25.554Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a354cc5f198dc38c158777c
Added to database: 06/19/2026, 14:05:57 UTC
Last enriched: 06/26/2026, 15:16:32 UTC
Last updated: 08/01/2026, 19:18:00 UTC
Views: 83
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