APISIX 3.113.17 Auth Bypass via Untrusted Input Attach-Consumer-Label plugin
CVE-2026-63041 Published on August 26, 2026
Apache APISIX: attach-consumer-label does not strip client-supplied consumer-label headers
Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX.
This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly.
This issue affects Apache APISIX: from 3.11.0 through 3.17.0.
Users are recommended to upgrade to version 3.18.0, which fixes the issue.
Vulnerability Analysis
CVE-2026-63041 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Reliance on Untrusted Inputs in a Security Decision
The application uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.
Products Associated with CVE-2026-63041
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Affected Versions
Apache Software Foundation Apache APISIX:- Version 3.11.0, <= 3.17.0 is affected.