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Message-ID: <d2cbd7ad-3714-b63a-b271-846de4053f77@apache.org>
Date: Fri, 13 Nov 2026 15:50:38 +0000
From: Abhishek Choudhary <shreemaanabhishek@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-124666: Apache APISIX: Multi-auth preserves
client-supplied Wolf identity headers
Severity:
CVSS 4.0: 6.4 (medium) CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Affected versions:
- Apache APISIX 3.8.0 through 3.19.0
Description:
Authentication bypass by spoofing vulnerability in Apache APISIX.
On a route where multi-auth falls back from wolf-rbac to another successful authenticator, client-supplied Wolf identity headers can remain in the request. A downstream service that relies on those documented headers may therefore receive an identity that was not established by the successful authenticator.
This issue affects Apache APISIX: from 3.8.0 through 3.19.0.
Users are recommended to upgrade to version 3.20.0, which fixes the issue.
Credit:
Ziyue (reporter)
shreemaan-abhishek (remediation developer)
shreemaan-abhishek (coordinator)
References:
https://apisix.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-124666
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