CVE-2026-23920 · cross-distro fix matrix

CVE-2026-23920: 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.

Affects 1 Linux release across 1 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-23920 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

zabbix→ fixed in1:7.0.22+dfsg-1~deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zabbix
```

Are YOU affected by CVE-2026-23920?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

CVE-2026-23920dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

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