CVE-2026-23920 Affecting zabbix package, versions <1:7.0.22+dfsg-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-ZABBIX-15806087
- published29 Mar 2026
- disclosed24 Mar 2026
Introduced: 24 Mar 2026
CVE-2026-23920 (opens in a new tab)How to fix?
Upgrade Debian:unstable zabbix to version 1:7.0.22+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream zabbix package and not the zabbix package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.