CVE-2026-31908

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CVSS 3.1

9.1 critical

EPSS

<1%p43

Published

Apr 14, 2026 (Apr 14, 2026)

Modified

Jun 17, 2026

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.

Vendors: apache
Products: apisix
Weakness: CWE-75
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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