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zabbix vulnerabilities

Vulnerabilities published for zabbix in the last 30 days: 6. Listed in the KEV catalogue: 0.

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Vulnerabilities: 53

  1. CVE-2026-59788

    Medium · CVSS 5.6EPSS 0.25%No fix published

    Stored XSS vulnerability in OAuth configuration form

    The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an import file, runs arbitrary JavaScript as the Super Admin who grants consent.

    Published Updated
  2. CVE-2026-59787

    Medium · CVSS 5.3EPSS 0.23%No fix published

    SNMP trap injection in zabbix_trap_receiver.pl

    The Perl SNMP trap receiver script shipped with Zabbix does not properly neutralize the ZBXTRAP record delimiter in trap content. This means someone able to send SNMP traps can inject a record targeting another host, resulting in a loss of integrity.

    Published Updated
  3. CVE-2026-59786

    Medium · CVSS 6.9EPSS 0.2%No fix published

    Active agent heartbeat missing TLS check

    Zabbix Server and Proxy accept the active agent heartbeat message regardless of the configured PSK or certificate authentication. This means someone with access to the Zabbix trapper port can report an arbitrary host using an active agent as available, resulting in a loss of integrity.

    Published Updated
  4. CVE-2026-59785

    Medium · CVSS 5.1EPSS 0.16%No fix published

    Hidden host credentials inferable via multiselect.get filtering

    Host search in Frontend allows filtering by fields that are not displayed, including stored IPMI and PSK credentials. A user with read access can guess a credential and see from the search result whether the guess was right, letting them uncover it.

    Published Updated
  5. CVE-2026-59783

    Low · CVSS 2.3EPSS 0.23%No fix published

    Server DoS via binary items

    The Zabbix Server/Proxy has a vulnerability where binary items can crash the Server/Proxy on certain NULL byte input leading to potential loss of availability. This only affects deployments where MySQL/MariaDB database is used as the Zabbix database.

    Published Updated
  6. CVE-2026-59782

    Medium · CVSS 6.9EPSS 0.24%No fix published

    JavaScript preprocessing memory disclosure

    The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.

    Published Updated
  7. CVE-2026-59781

    Medium · CVSS 5.4EPSS 0.16%No fix published

    Improper validation of custom installation directories on Windows could allow installation into locations with unsafe permissions, increasing the risk of DLL sideloading.

    When Zabbix Agent was installed on Windows into a custom installation directory, the installer did not verify whether the selected directory had secure access permissions. If the target directory allowed unauthorized users to modify its contents, an attacker could place a malicious DLL that could later be loaded by the application, resulting in DLL sideloading. The installer has been hardened to detect potentially unsafe installation directories and now requires explicit user confirmation before proceeding with installation in such locations. This reduces the risk of accidental installation into directories with inappropriate permissions whil

    Published Updated
  8. CVE-2026-23933

    High · CVSS 7.7EPSS 0.57%No fix published

    Hardcoded session key in Zabbix 7.4

    In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the only known exploitation scenario is for deployments that utilize both - SAML authentication and guest users. In such cases the key can be used to forge valid session cookies, potentially leading to unauthorized access. For other Zabbix deployments this does not have a known impact.

    Published Updated
  9. CVE-2026-23929

    High · CVSS 8.5EPSS 0.26%No fix published

    Prototype pollution leading to stored XSS

    Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filtering dangerous properties like __proto__, combined with jQuery's unsafe element creation that traversed the prototype chain.

    Published Updated
  10. CVE-2026-1199

    Medium · CVSS 6.9EPSS 0.23%No fix published

    API and Frontend login lockout race condition

    Zabbix API and Frontend login lockout mechanism has a flaw where several unsuccessful login requests are not properly counted towards the block counter if sent simultaneously, potentially allowing for more password guesses than intended.

    Published Updated
  11. CVE-2026-23928

    High · CVSS 7.3EPSS 0.26%No fix published

    Stored XSS vulnerability in the Item history/Plain text widget

    The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enabled. This can allow an attacker to perform unauthorized actions depending on which user opens a dashboard containing these widgets. The malicious JavaScript would have to come from a monitored host controlled by the attacker. Note: the Item history widget is a replacement for the Plain text widget since Zabbix 7.0.

    Published Updated
  12. CVE-2026-23927

    Medium · CVSS 5.1EPSS 0.22%No fix published

    Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter

    A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connecting to an attacker-controlled server and leaking Oracle database credentials if they are saved in a named session.

    Published Updated
  13. CVE-2026-23926

    High · CVSS 7.3EPSS 0.26%No fix published

    Stored XSS vulnerability in Host navigator widget maintenance tooltip

    An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.

    Published Updated

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