CVE-2026-31908

Published: Apr 14, 2026Modified: Jun 17, 2026

9.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitability: 3.9 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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.

Affected (1)

Products: Apache: Apisix

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Apache Apisix	From 2.12.0 to 3.16.0

Related CWEs

Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)

The product does not adequately filter user-controlled input for special elements with control implications.

References (2)

https://lists.apache.org/thread/sob643s5lztov7x579j8o0c444t36n6b

Source: security@apache.org

Mailing ListVendor Advisory

http://www.openwall.com/lists/oss-security/2026/04/14/3

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

Timeline

No history available yet.