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High severity8.8NVD Advisory· Published Mar 24, 2026· Updated Sep 10, 2026

CVE-2026-23920

CVE-2026-23920

Description

Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Zabbix/Zabbix3 versions
    cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*range: >=7.0.0,<7.0.22
    • (no CPE)
    • (no CPE)range: 7.0.0

Patches

Vulnerability mechanics

References

1

News mentions

0

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