https://seclists.org/oss-sec/2026/q2/127: CVE-2026-31908: Apache APISIX: forward auth plugin allows header injection

Published Apr 14, 2026
·
Updated

Affected Software

1 affected component
Apache APISIX>=2.12.0<=3.15.0
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Frequently Asked Questions

1

What is the severity of CVE-2026-31908?

The severity of CVE-2026-31908 is classified as moderate.

2

Which versions of Apache APISIX are affected by CVE-2026-31908?

CVE-2026-31908 affects Apache APISIX versions from 2.12.0 through 3.15.0.

3

What type of vulnerability is CVE-2026-31908?

CVE-2026-31908 is a header injection vulnerability in the forward auth plugin of Apache APISIX.

4

How can CVE-2026-31908 be exploited?

An attacker can exploit CVE-2026-31908 by taking advantage of specific configurations in the forward-auth plugin to inject malicious headers.

5

How do I fix CVE-2026-31908?

To mitigate CVE-2026-31908, upgrade to a version of Apache APISIX that is above 3.15.0.

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