What’s Vulnerable › Vulnerabilities

CVE-2026-94269: Apache APISIX: Servlet-style normalization creates a route/upstream authorization mismatch

• Severity: medium (CVSS 6.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-01 · updated 2026-10-01
• Weakness: CWE-647

Description

Use of Non-Canonical URL paths for authorization decisions vulnerability in Apache APISIX. In some configurations where a permissive route overlaps a protected one, a crafted encoded path can reach an upstream endpoint that the matched route's policies were never meant to cover. A request that should have been rejected is served instead, giving unauthenticated access to a protected upstream endpoint. This issue affects Apache APISIX: from 2.14.1 through 3.18.0. Users are recommended to upgrade to version 3.19.0, which fixes the issue.

Affected products

• Apache Software Foundation Apache APISIX: from 2.14.1 through 3.18.0

References

• https://lists.apache.org/thread.html/6p7glm8jtkjrn12t7z2ybn6bplm22tns
• http://www.openwall.com/lists/oss-security/2026/10/01/7

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