CVE-2026-124666 · Infrastructure
NO FIX YET · SEE WHAT TO DO
On Apache APISIX routes using multi-auth, client-supplied wolf-rbac identity headers can survive when authentication falls back to another authenticator. A downstream service that trusts those headers may then accept an identity that was never authenticated.
first public Nov 13, 2026 · 1 source
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Exposed only where Apache APISIX routes use multi-auth with wolf-rbac as one of the authenticators, and a downstream service relies on the documented Wolf identity headers. Gateways without multi-auth fallback to wolf-rbac are not described as affected.
Not affected if no-multi-auth, no-wolf-rbac, versions-outside-range
Who cares apache-apisix, api-gateway, multi-auth, wolf-rbac
3.8.0 through 3.19.0.multi-auth plugin with wolf-rbac, and confirm whether downstream services read the Wolf identity headers.3.20.0.Authentication bypass by spoofing vulnerability in Apache APISIX.
On a route where multi-auth falls back from wolf-rbac to another successful authenticator, client-supplied Wolf identity headers can remain in the request. A downstream service that relies on those documented headers may therefore receive an identity that was not established by the successful authenticator.
This issue affects Apache APISIX: from 3.8.0 through 3.19.0.
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:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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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