CVE-2026-49872: Apache APISIX

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper Authentication vulnerability in Apache APISIX. When the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source. This issue affects Apache APISIX: from 3.0.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.

Affected products

• Apache APISIX: from 3.0.0, before 3.17.0 (fixed in 3.17.0)

Published 2026-06-19. Last modified 2026-06-23.