CVE-2026-124680

Apache APISIX: Route-level authentication bypass via path normalization mismatch between routing and upstream forwarding

Published Nov 13, 2026 CVSS 4.0 · 7 High EPSS n/a KEV · Not listed
Description
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.

Analysis

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Remediation

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History
Type Values Removed Values Added
Description 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.
Title Apache APISIX: Route-level authentication bypass via path normalization mismatch between routing and upstream forwarding
Weaknesses CWE-436
References
Metrics cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}

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Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 13, 2026, 5:51 PM
Reserved
Nov 9, 2026, 10:24 AM
Status
Received
Published
Nov 13, 2026, 6:17 PM
Modified
Nov 13, 2026, 6:17 PM