Low [CVE-2026-23938] Denial of Service via crafted JavaScript scripts
This low-severity Red Hat Linux advisory covers CVE-2026-23938.
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Summary
A flaw was found in Zabbix. An authenticated administrator can exploit this vulnerability by creating specially crafted JavaScript scripts within preprocessing or script items.
This can lead to a denial of service (DoS) by crashing the Zabbix server or proxy. Zabbix is not shipped in any Red Hat product.
This flaw affects community packages in Fedora and EPEL only. Red Hat severity: Low — CVSS 2.7 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).
Weakness: CWE-770.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Restrict administrative access to trusted users only. Review and audit JavaScript preprocessing and script items configured on the Zabbix server.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Discussion(0)
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