#VU122111 XML injection in Central Authentication System (CAS) Server - CVE-2026-1554

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Main Vulnerability Database Vulnerabilities #VU122111

#VU122111 XML injection in Central Authentication System (CAS) Server - CVE-2026-1554

Published: January 29, 2026


Vulnerability identifier: #VU122111
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-1554
CWE-ID: CWE-91
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Central Authentication System (CAS) Server
Software vendor:
Jaap Jansma

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected module does not sufficiently sanitize user-supplied field values configured to be included as attributes in a CAS server response. A remote user can pass specially crafted XML data to the application and cause a denial of service condition on the target system.


Remediation

Install updates from vendor's website.

External links