CVE Feed

    Dashboard / CVE / CVE-2026-18265

    CVE-2026-18265

    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. Was ZDI-CAN-30036.

    Published:Aug 20, 2026
    Last Modified:Aug 26, 2026
    EPS:Aug 20, 2026
    EPSS Score:0.00692
    CVSS Score:9.8

    Affected Products

    Vendor
    Osnexus
    Product
    Quantastor

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-10880 (CVSS 9.8) — OSNexus QuantaStor SDS Manager is vulnerable to SQL injection in the login endpoint. The username field is not…
    CVE-2021-4406 (CVSS 9.1) — An authenticated attacker is able to create alerts that trigger a stored XSS attack. POC * go to the ale…
    CVE-2021-42081 (CVSS 9.1) — An authenticated administrator is allowed to remotely execute arbitrary shell commands via the API. POC http:…
    CVE-2021-42079 (CVSS 6.2) — An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exc…
    CVE-2021-42080 (CVSS 7.4) — An attacker is able to launch a Reflected XSS attack using a crafted URL. POC: Visit the following URL https…
    CVE-2021-42082 (CVSS 7.8) — Local users are able to execute scripts under root privileges. POC On the local host run the following comma…
    CVE-2021-42083 (CVSS 8.7) — An authenticated attacker is able to create alerts that trigger a stored XSS attack. POC * go to the ale…
    CVE-2017-9978 (CVSS 5.3) — On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, a flaw was found with the error message sent as a…
    CVE-2017-9979 (CVSS 6.1) — On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, if the REST call invoked does not exist, an error…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High