CVE-2026-124680

EUVD-2026-125678
Interpretation Conflict, resulting in (Incorrect Authorization) vulnerability in Apache APISIX.



An unauthenticated client can reach upstream paths protected
by a route-level auth plugin when a route without auth exists on the
same upstream and the upstream does not collapse encoded dot segments.



This issue affects Apache APISIX: from 0.9 through 3.19.0.



Users are recommended to upgrade to version 3.20.0, which fixes the issue.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
apacheCNA
7 HIGH
NETWORK
LOW
NONE
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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
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
0.9 ≤
𝑥
≤ 3.19.0
CNA
Common Weakness Enumeration
References
https://lists.apache.org/thread/tsr691p4s58572og5f88p831vygbflvz
http://www.openwall.com/lists/oss-security/2026/11/13/7