CVE-2019-20920 · cross-distro fix matrix

CVE-2019-20920: Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2019-20920 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

node-handlebars→ fixed in3:4.5.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y node-handlebars
```

Debian bookworm

Source: Debian Security Tracker

node-handlebars→ fixed in3:4.5.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y node-handlebars
```

Debian trixie

Source: Debian Security Tracker

node-handlebars→ fixed in3:4.5.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y node-handlebars
```

Are YOU affected by CVE-2019-20920?

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

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