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CVE-2026-23930

Frontend DoS via the popup.testtriggerexpr action

Medium5.3EPSS 0.63%
Published
Updated
Reserved
Assigned by
Zabbix

Description

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.

Scores

CVSS scores of CVE-2026-23930, by who scored it
Scored byCVSSScoreVector
ZabbixCNA (assigner)4.0Medium5.3CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
NVDNVD · Analyzed4.0Medium5.3CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
0.63% · top 50% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

  • Zabbix · Zabbix

    • affected 6.0.0 – ≤ 6.0.46
    • affected 7.0.0 – ≤ 7.0.26
    • affected 7.4.0 – ≤ 7.4.10

What to do

Solution: Update the affected components to their respective fixed versions.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2026-23930 badge
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Record last updated .