CVE-2026-49871

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.

CVSS v3 9.3 CRITICAL

9.3^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp	Vendor Advisory Mailing List
http://www.openwall.com/lists/oss-security/2026/06/19/14	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*

History

23 Jun 2026, 15:20

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.3
References	~~() https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp -~~	() https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp - Vendor Advisory, Mailing List
References	~~() http://www.openwall.com/lists/oss-security/2026/06/19/14 -~~	() http://www.openwall.com/lists/oss-security/2026/06/19/14 - Third Party Advisory
CPE		cpe:2.3:a:apache:apisix::::::::
First Time		Apache apisix Apache

19 Jun 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 14:16

Updated : 2026-06-23 15:20

NVD link : CVE-2026-49871

Mitre link : CVE-2026-49871

CVE.ORG link : CVE-2026-49871

JSON object : View

Products Affected

apache

apisix

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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