| CVE ID |
CVE-2026-23934 |
| CVSS score |
5.1 (Medium) |
| CVSS vector |
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Affected components |
Frontend |
| Summary |
Frontend DoS via the validate.api.exists action |
| Description |
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. |
| Known attack vectors |
An authenticated user sending crafted HTTP requests to Zabbix Frontend. |
| Affected and fix version/s |
Affected: 7.4.0 - 7.4.11 → Fixed: 7.4.12 |
| Mitigation |
Update the affected components to their respective fixed versions. |
| Workarounds |
- |
| Acknowledgements |
Zabbix wants to thank kang999 for submitting this report on the HackerOne bug bounty platform. |
Defect (Security)
Minor