CVE-2026-23934

An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service...

CVE-2026-23930

An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service...

CVE-2026-23930

An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service...

CVE-2026-23931

The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality...

DEBIAN-CVE-2026-23930

An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service...

DEBIAN-CVE-2026-23934

An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service...

UBUNTU-CVE-2026-23931

The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality...

CVE-2026-23931

The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality...

CVE-2026-1199

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...

CVE-2026-23933

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...

UBUNTU-CVE-2026-23933

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...

CVE-2026-74978

Clickjacking issue in the Widget component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1...

CVE-2026-23934

An authenticated user with low privileges can send crafted requests to the Frontend validate.api.exists action in Zabbix, causing disproportionate CPU load and potential denial of service (CVSS 5.1 Medium, adjacent network). No exploitation details or patch version are provided in the documents. ...

EUVD-2026-60738

An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service...

CVE-2026-23934 Frontend DoS via the validate.api.exists action

An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service...

CVE-2026-23934

An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service...

CVE-2026-23931

Zabbix's frontend validate.api.exists action allows authenticated users to extract plaintext user macro values, exposing sensitive configuration data (CVSS 5.3, Medium). The Nessus scanner confirms no vendor-supplied patch is available for affected Linux/Unix packages; users should monitor Zabbix...

CVE-2026-23931 Frontend plaintext macro value enumeration via the validatate.api.exists action

The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality...

CVE-2026-23930 Frontend DoS via the popup.testtriggerexpr action

An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service...

CVE-2026-23930

CVE-2026-23930 affects the Zabbix monitoring platform. An unauthenticated attacker can send specifically crafted requests to the Frontend popup.testtriggerexpr action, causing disproportionate CPU load on the Frontend webserver and leading to a potential denial of service . The NVD rates the vuln...