Vulnerability record/PUBLISHED/Published Nov 13, 2026 17:52:10 UTC
CVE-2026-124666
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.
Base score6.4/ 10
SeverityMediumCVSS 4.0
Exploitability / impact
CVSS metric breakdown
Base severityMedium
Attack vectorNetworkAV
Attack complexityLowAC
Attack requirementsNoneAT
Privileges requiredLowPR
User interactionNoneUI
Vulnerable system confidentialityNoneVC
Vulnerable system integrityNoneVI
Vulnerable system availabilityNoneVA
Subsequent system confidentialityHighSC
Subsequent system integrityHighSI
Subsequent system availabilityNoneSA
CVSS vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NCVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.
Record context
CVE Numbering Authorityapache
Last updatedNov 13, 2026 23:04:58 UTC
PublishedNov 13, 2026 17:52:10 UTC
ReservedNov 9, 2026 09:28:24 UTC
Credits
- Ziyue
- shreemaan-abhishek
- shreemaan-abhishek