CVE-2026-49871

CriticalCVSS 9.3/10Last modified Oct 26, 2026

Description

Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.

This defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.

Actions the victim takes upstream are then attributed to attackers identity.

This issue affects Apache APISIX: from 3.0.0 through 3.16.0.

Users are recommended to upgrade to version 3.17.0, which fixes the issue.

Metrics

CVSS 3.1 9.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-352

Affected software

Vendor	Product	Versions
Apache Software Foundation	Apache APISIX	>= 3.0.0, <= 3.16.0

References

https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycpVendor Advisory, Mailing List
http://www.openwall.com/lists/oss-security/2026/06/19/14Third Party Advisory

Timeline

Published: Jun 19, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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