CVE-2021-41270 · cross-distro fix matrix

CVE-2021-41270: Symfony/Serializer handles serializing and deserializing data structures for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Symfony versions 4.1.0 before 4.4.35 and versions 5.0.0 before 5.3.12 are vulnerable to CSV injection, also known as formula in

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-41270 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

symfony→ fixed in4.4.19+dfsg-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y symfony
```

Debian bookworm

Source: Debian Security Tracker

symfony→ fixed in4.4.19+dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y symfony
```

Debian trixie

Source: Debian Security Tracker

symfony→ fixed in4.4.19+dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y symfony
```

Are YOU affected by CVE-2021-41270?

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

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Continuous monitoring beats manual checking

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