CVE-2026-23919
mediumpriority · track · 24EPSS 0.003 · 17 %ileDEEURUUSEPSS · scored 2026-10-27
For performance reasons Zabbix Server/Proxy reuses JavaScript (Duktape) contexts (used in script items, JavaScript reprocessing, Webhooks). This can lead to confidentiality loss where a regular (non-super) Zabbix administrator leaks data for hosts they do not have access to. A fix has been released that makes the built in Zabbix JavaScript objects read-only, but please be advised that usage of global JavaScript variables is not recommended because their content could be leaked. More information <a href='https://www.zabbix.com/documentation/7.4/en/manual/installation/known_issues#preprocessing-global-variables-are-unsafe'>in Zabbix documentation</a>.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.8–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (24)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0857Zabbix: Mehrere SchwachstellenDeutsch2026-03-24csaf · cert_bundDE
Ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in Zabbix ausnutzen, um Informationen offenzulegen, um Shell-Befehle einschleusen, um eine SQL Injection durchzuführen und um einen Denial of Service zu verursachen.
also known as (4)
Other names and identifiers for this entity.
sources
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references (6)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-23919cnnvd
- https://support.zabbix.com/browse/ZBX-27638cnnvd
- https://vigilance.fr/vulnerability/Zabbix-information-disclosure-via-JavaScript-Duktape-50162cnnvd
- https://www.zabbix.com/downloadPatchcnnvd
- https://support.zabbix.com/browse/ZBX-27638enisa_euvd
- https://support.zabbix.com/browse/ZBX-27638nvd
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