CVSS 4.0
7.0 highCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NCVE-2026-124680 Apache APISIX: Route-level authentication bypass via path normalization mismatch between routing and upstream forwarding
High (7.0) in apache software foundation apache apisix.
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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.
Severity
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-436 Interpretation Conflict
- OWASP Top 10
- A06:2025 Insecure Design
- Published
- Modified
- Assigned by
- apache (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- apache software foundation:apache apisix
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Apache Software Foundation Apache APISIX | from 0.9 through 3.19.0 |
Attack patterns (CAPEC)
- CAPEC-34 HTTP Response Splitting Likelihood: Medium · Severity: High
- CAPEC-105 HTTP Request Splitting Likelihood: Medium · Severity: High
- CAPEC-273 HTTP Response Smuggling Likelihood: Medium · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.