ZDI-CAN-30036: ZDI-26-480: OSNEXUS QuantaStor Missing Authentication Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OSNEXUS QuantaStor. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of Kapacitor. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of root.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OSNEXUS QuantaStor. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.8. The following CVEs are assigned: CVE-2026-18265.
— ZDI
Affected Software
Event History
Frequently Asked Questions
Does exploiting this issue require valid QuantaStor credentials?
No. The vulnerability can be exploited without authentication, allowing a remote attacker to execute arbitrary code.
What is the assigned CVE and severity rating?
The issue is tracked as CVE-2026-18265 and has a CVSS rating of 9.8.