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.
Published: 2026-11-13
Score: 7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Fri, 13 Nov 2026 18:00:00 +0000

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'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-11-13T17:51:28.431Z

Reserved: 2026-11-09T10:24:53.831Z

Link: CVE-2026-124680

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T18:17:31.533

Modified: 2026-11-13T18:17:31.533

Link: CVE-2026-124680

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses