9.1Critical
CVE-2026-31908Apache APISIX: forward auth plugin allows header injection
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.
Weakness (CWE):
CWE-75
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| Apache Software Foundation | Apache APISIX | 2.12.0 – ≤ 3.15.0 | |
| apache | apisix | 2.12.0 – < 3.16.0 |
References and patches
- https://lists.apache.org/thread/sob643s5lztov7x579j8o0c444t36n6b vendor-advisoryMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/04/14/3 Mailing ListThird Party Advisory
CPE matches (NVD) (1)
cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*≥ 2.12.0 < 3.16.0