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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache APISIX | 2.12.0 – ≤ 3.15.0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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MehranTurk/CVE-2026-31908 ★ 1 · Apr 19, 2026
This proof-of-concept (PoC) exploit targets CVE-2026-31908, a critical header injection vulnerability affecting Apache APISIX versions 2.12.0 through 3.15.0
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://lists.apache.org/thread/sob643s5lztov7x579j8o0c444t36n6b vendor-advisory