EXPOSURES › CVE-2026-105133
CVE-2026-105133
HIGH ⌖ ON CISA KEV · EXPLOITEDAhsay AhsayCBS allows remote attackers to bypass authentication via API parameter manipulation, enabling unauthorized access to backup data.
The AhsayCBS backup software contains an improper authentication flaw where attackers can bypass login by manipulating API parameters, directly exposing sensitive backup data to unauthorized parties. This is a critical failure for DIB organizations relying on Ahsay for data protection, as it undermines the core trust model of backup solutions and violates CMMC/NIST 800-171 requirements for access control and data integrity. Organizations must immediately patch AhsayCBS and audit their backup access logs for signs of exploitation.
Shame score — A fundamental authentication bypass in a backup product is highly avoidable and directly enables data exfiltration, representing a severe negligence in securing a critical data protection tool.
▸ RECOMMENDED ACTION Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.
Ahsay AhsayCBS contains an improper authentication vulnerability that could allow a remote attacker to bypass authentication via manipulation of the random parameter in the API component’s checkSysPwd function. This vulnerability can be chained with CVE-2026-105134.