CVE-2022-39956 · cross-distro fix matrix

CVE-2022-39956: The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character encoding scheme via the Content-Type or the deprecated Content-Transfer-Encoding multipart MIME header fields that will not be decoded and insp

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

Fix per ecosystem

Each block below is a distro release where CVE-2022-39956 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

modsecurity-crs→ fixed in3.3.4-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y modsecurity-crs
```

Debian bookworm

Source: Debian Security Tracker

modsecurity-crs→ fixed in3.3.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y modsecurity-crs
```

Debian trixie

Source: Debian Security Tracker

modsecurity-crs→ fixed in3.3.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y modsecurity-crs
```

Are YOU affected by CVE-2022-39956?

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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