Authentication bypass by spoofing vulnerability in Apache APISIX.

When a Route's configured headers carry a caller identity and the OpenAPI document declares the same header, a caller can act as another identity against the upstream API. This issue affects Apache APISIX: from 3.19.0 before 3.20.0.

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

CVSS Details

CVSS 4.0 Base Score: 2.3 (LOW)
CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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)

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CVSS Details

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CVE-2026-124719: Apache Software Foundation Apache APISIX: Authentication bypass by spoofing vulnerability in Apache APISIX

CVSS Details

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