CVE-2026-49231: CWE-290 Authentication Bypass by Spoofing in Apache Software Foundation Apache APISIX
CVE-2026-49231 is an authentication bypass vulnerability in the opa plugin of Apache APISIX. The flaw allows an attacker to relay spoofed identity headers to upstream services when non-default opa plugin configurations are used, potentially granting higher privileges on those services. This affects Apache APISIX versions from 3.5.0 through 3.16.0. The issue is fixed in version 3.17.0.
AI Analysis
Technical Summary
This vulnerability in Apache APISIX's opa plugin involves authentication bypass by spoofing identity headers. Attackers can exploit non-default configurations to relay spoofed headers to upstream services, enabling privilege escalation on those services. The affected versions are 3.5.0 through 3.16.0. Users are advised to upgrade to 3.17.0 where the issue is resolved.
Potential Impact
An attacker exploiting this vulnerability could bypass authentication controls by spoofing identity headers, allowing them to assume higher privileges on upstream services. The CVSS score is low (2.3), indicating limited impact or exploitability under typical conditions.
Mitigation Recommendations
Upgrade Apache APISIX to version 3.17.0 or later, which contains the fix for this authentication bypass vulnerability. No other mitigation or temporary workaround is indicated.
CVE-2026-49231: CWE-290 Authentication Bypass by Spoofing in Apache Software Foundation Apache APISIX
Description
CVE-2026-49231 is an authentication bypass vulnerability in the opa plugin of Apache APISIX. The flaw allows an attacker to relay spoofed identity headers to upstream services when non-default opa plugin configurations are used, potentially granting higher privileges on those services. This affects Apache APISIX versions from 3.5.0 through 3.16.0. The issue is fixed in version 3.17.0.
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 authentication bypass by spoofing identity headers. Attackers can exploit non-default configurations to relay spoofed headers to upstream services, enabling privilege escalation on those services. The affected versions are 3.5.0 through 3.16.0. Users are advised to upgrade to 3.17.0 where the issue is resolved.
Potential Impact
An attacker exploiting this vulnerability could bypass authentication controls by spoofing identity headers, allowing them to assume higher privileges on upstream services. The CVSS score is low (2.3), indicating limited impact or exploitability under typical conditions.
Mitigation Recommendations
Upgrade Apache APISIX to version 3.17.0 or later, which contains the fix for this authentication bypass vulnerability. No other mitigation or temporary workaround is indicated.
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: 6/19/2026, 2:05:57 PM
Last enriched: 6/19/2026, 2:20:51 PM
Last updated: 6/19/2026, 3:56:17 PM
Views: 3
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