CVE-2026-49231
Received Received - Intake
Authentication Bypass via Spoofed Headers in Apache APISIX

Publication date: 2026-06-19

Last updated on: 2026-06-19

Assigner: Apache Software Foundation

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.
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Meta Information
Published
2026-06-19
Last Modified
2026-06-19
Generated
2026-06-19
AI Q&A
2026-06-19
EPSS Evaluated
N/A
NVD
CVE-2026-49231
EUVD
EUVD-2026-38020
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
apache apisix From 3.5.0 (inc) to 3.16.0 (inc)
apache apisix 3.17.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-290 This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
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Executive Summary

CVE-2026-49231 is an authentication bypass vulnerability in the opa plugin of Apache APISIX, affecting versions 3.5.0 through 3.16.0.

An attacker can exploit this vulnerability by spoofing identity headers and relaying them to upstream services due to a non-default configuration in the opa plugin.

This allows the attacker to assume higher privileges on the upstream service, effectively bypassing authentication controls.

Impact Analysis

This vulnerability can allow an attacker to gain elevated privileges on upstream services by spoofing identity headers.

As a result, unauthorized users could access or manipulate resources they should not have permission to, potentially leading to data breaches or service disruptions.

Mitigation Strategies

To mitigate this vulnerability, users are recommended to upgrade Apache APISIX to version 3.17.0 or later, which contains the fix for this authentication bypass issue.

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