CVE-2026-124719 · Infrastructure
NO FIX YET · SEE WHAT TO DO
Apache APISIX, an API gateway, can be tricked into trusting a caller identity header, so a caller can act as another identity against the upstream API. The sources say this affects versions from 3.19.0 before 3.20.0 when a Route's configured headers carry a caller identity and the OpenAPI document declares the same header.
first public Nov 13, 2026 · 1 source
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Teams running Apache APISIX from 3.19.0 before 3.20.0 where a Route sets a caller identity header and the OpenAPI document declares the same header. Gateways on other versions, or Routes without that header pattern, are not described as affected.
Not affected if default-config
Who cares apache-apisix, api-gateway, self-hosted
apisix version or the image tag) and see whether it is between 3.19.0 and 3.20.0.3.20.0.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.
This page as .md · .json · 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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