CVE-2026-124719

EUVD-2026-125677
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
apacheCNA
2.3 LOW
NETWORK
LOW
LOW
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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
apacheapisix
3.19.0 ≤
𝑥
< 3.20.0
CNA
Common Weakness Enumeration
References
https://lists.apache.org/thread/k7v3vfh09mr1spk4r5k8n1gsjrhk6d8x
http://www.openwall.com/lists/oss-security/2026/11/13/9