Open Redirect Vulnerability in Drupal Central Authentication System
CVE-2026-87937

Currently unrated

Key Information:

Vendor

Drupal
Status
Central Authentication System (cas) Server
Vendor
CVE Published:
22 October 2026

What is CVE-2026-87937?

A vulnerability in the Drupal Central Authentication System (CAS) Server allows malicious actors to manipulate redirection functionality, potentially directing users to untrusted sites. This issue affects various versions of the CAS Server, highlighting the importance of applying appropriate updates to maintain security integrity.

Affected Version(s)

Central Authentication System (CAS) Server 0.0.0 < 2.0.4

Central Authentication System (CAS) Server 2.1.0 < 2.1.3

References

https://www.drupal.org/sa-contrib-2026-135

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kalle Kipinä (kekkis)
Ted Cooper (elc)
Bram Driesen (bramdriesen)
Greg Knaddison (greggles)
Jess (xjm)
Swan Kalata (akalata)
.