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CVE-2026-124680

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

Severity
High 7.0
Published
13 Nov 2026
Last changed
13 Nov 2026
Added to UpHeron
13 Nov 2026
Weakness
CWE-436
Attack
Over the network · Only under certain conditions · No login needed · No user action needed
CVSS 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
Sources
CVE Program

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.

From the CVE Program.

Affected software

SoftwareAffected versions
Apache APISIXServers and applications · cna:apache software foundation|apache apisix
  • From 0.9 up to 3.19.0

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-124680