Description
Authentication bypass by spoofing vulnerability in Apache APISIX.



On routes using jwe-decrypt with strict: false and a
forward_header distinct from the token header an unauthenticated
client can supply the value the upstream treats as gateway-decrypted
plaintext. Similar can happen when forward-auth is configured with allow_degradation: true, and the auth service is unavailable.



This issue affects Apache APISIX: from 3.18.0 through 3.19.0.



Users are recommended to upgrade to version 3.20.0, which fixes the issue.
Published: 2026-11-13
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Fri, 13 Nov 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache apache Apisix
Apache apisix
Apache Software Foundation
Apache Software Foundation apache Apisix
Vendors & Products Apache
Apache apache Apisix
Apache apisix
Apache Software Foundation
Apache Software Foundation apache Apisix

Fri, 13 Nov 2026 18:00:00 +0000

Type Values Removed Values Added
Description Authentication bypass by spoofing vulnerability in Apache APISIX. On routes using jwe-decrypt with strict: false and a forward_header distinct from the token header an unauthenticated client can supply the value the upstream treats as gateway-decrypted plaintext. Similar can happen when forward-auth is configured with allow_degradation: true, and the auth service is unavailable. This issue affects Apache APISIX: from 3.18.0 through 3.19.0. Users are recommended to upgrade to version 3.20.0, which fixes the issue.
Title Apache APISIX: jwe-decrypt and forward-auth may pass a client-supplied identity header
Weaknesses CWE-290
References
Metrics cvssV4_0

{'score': 7.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N'}


Subscriptions

Apache Apache Apisix Apisix
Apache Software Foundation Apache Apisix
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-11-13T17:53:07.017Z

Reserved: 2026-11-09T10:01:04.098Z

Link: CVE-2026-124679

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T18:17:31.393

Modified: 2026-11-13T18:17:31.393

Link: CVE-2026-124679

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-13T22:30:07Z

Weaknesses
  • CWE-290

    Authentication Bypass by Spoofing