CVE-2026-49871 — Apache APISIX: cas-auth login CSRF / session injection issue

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache APISIX	affected 3.0.0 through 3.16.0

CWE

CWE-352

References

https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/06/19/14

CISA-ADP

No English description supplied.

No references supplied.