Improper Authentication in AhsayCBS - CVE-2026-105134
Published: October 15, 2026
Vulnerability identifier: #VU155934
CSH Severity: Critical
CVSS v4: 10 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]
CVE-ID: CVE-2026-105134
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper authentication in the Replication Receiver endpoint /rps/api/json/UpdateReceivers.do when handling receiver configuration requests. A remote attacker can configure a malicious replication receiver and place a JSP webshell in the application directory to execute arbitrary code.
Observed exploitation chained this vulnerability with CVE-2026-105133. On the targeted Windows hosts, code ran as NT AUTHORITY/SYSTEM.
Affected software
AhsayCBS
How to mitigate CVE-2026-105134
Install security update from vendor's website.
AhsayCBS - addressed in versions 9.15.2.70, 10.3.4.45