Apache APISIX <3.20 Auth Bypass via Route Conflict
CVE-2026-124680 Published on November 13, 2026
Apache APISIX: Route-level authentication bypass via path normalization mismatch between routing and upstream forwarding
Interpretation Conflict, resulting in (Incorrect Authorization) vulnerability in Apache APISIX.
An unauthenticated client can reach upstream paths protected
by a route-level auth plugin when a route without auth exists on the
same upstream and the upstream does not collapse encoded dot segments.
This issue affects Apache APISIX: from 0.9 through 3.19.0.
Users are recommended to upgrade to version 3.20.0, which fixes the issue.
Vulnerability Analysis
CVE-2026-124680 is exploitable with network access, and does not require authorization privileges or user interaction. 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
Interpretation Conflict
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state. This is generally found in proxies, firewalls, anti-virus software, and other intermediary devices that monitor, allow, deny, or modify traffic based on how the client or server is expected to behave.
Products Associated with CVE-2026-124680
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Affected Versions
Apache Software Foundation Apache APISIX:- Version 0.9, <= 3.19.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.