PT-2026-147043

CVE-2026-124723

Published

2026-11-13

Updated

2026-11-13

Description by

CVSS 4.0

6.3

Medium

MetricsAV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Interpretation Conflict, leading to Incorrect Authorization vulnerability in Apache APISIX.

With match uri encoded slash enabled and skip mtls uri regex configured, a client without a certificate can reach an upstream behind a route that requires one, limited to request paths that decode to an exempted URI. This issue affects Apache APISIX: from 3.18.0 through 3.19.0.

Users are recommended to upgrade to version 3.20.0, which fixes the issue.

Exploitability

Fix

Impacts

Researchers

Hataehoon

Shreemaan-Abhishek

Vendors

Affected products

Weakness enumeration

CWE-863: Incorrect Authorization

CWE-436: Interpretation Conflict