CVE-2026-31908
CRITICAL
CVSS: 9.1
EPSS: 0.5%
CWE-75
Header injection vulnerability in Apache APISIX.
The attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers.
This issue affects Apache APISIX: from 2.12.0 through 3.15.0.
Users are recommended to upgrade to version 3.16.0, which fixes the issue.
Published: 2026-04-14