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CVE-2026-49871

Apache APISIX: cas-auth login CSRF / session injection issue

Published: Jun 19, 2026Updated: Jun 23, 2026 Sources: CVE List NVDCWE-352
9.3CRITICAL
NVD MITRE
EPSS Score
0.4%
Top 71.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-352

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache APISIX
Networking Infrastructure / load-balancer-proxy
apache
oss-project·USaka apache httpd, apache http server
apisixOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp
lists.apache.org
http://www.openwall.com/lists/oss-security/2026/06/19/14
openwall.com

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