CVE-2026-23938
MEDIUMCVSS 4.9/10EPSS 0.30%
Last modified
CVE-2026-23938 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zabbix | Zabbix | >= 6.0.0, < 6.0.47 |
| Zabbix | Zabbix | >= 7.0.0, < 7.0.27 |
| Zabbix | Zabbix | >= 7.4.0, < 7.4.11 |
References
- https://support.zabbix.com/browse/ZBX-28075Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-23938?
An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.
How severe is CVE-2026-23938?
CVE-2026-23938 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2026-23938?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-23938?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST