CVE-2026-42046 · cross-distro fix matrix

CVE-2026-42046: It was discovered that libcaca incorrectly handled certain malformed files.

Affects 4 Linux releases across 16 (distro × package) combinations. First disclosed: 2026-05-11.

CVSS v3:HIGH · 7.8(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-42046 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

libcaca→ fixed in0.99.beta19-2.2ubuntu4.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca
```
caca-utils→ fixed in0.99.beta19-2.2ubuntu4.2USN-8318-1
```
sudo apt-get install --only-upgrade -y caca-utils
```
libcaca-dev→ fixed in0.99.beta19-2.2ubuntu4.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca-dev
```
libcaca0→ fixed in0.99.beta19-2.2ubuntu4.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca0
```

Ubuntu noble

Source: Ubuntu USN

libcaca→ fixed in0.99.beta20-4ubuntu0.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca
```
caca-utils→ fixed in0.99.beta20-4ubuntu0.2USN-8318-1
```
sudo apt-get install --only-upgrade -y caca-utils
```
libcaca-dev→ fixed in0.99.beta20-4ubuntu0.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca-dev
```
libcaca0→ fixed in0.99.beta20-4ubuntu0.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca0
```

Ubuntu questing

Source: Ubuntu USN

libcaca→ fixed in0.99.beta20-5ubuntu0.25.10.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca
```
caca-utils→ fixed in0.99.beta20-5ubuntu0.25.10.2USN-8318-1
```
sudo apt-get install --only-upgrade -y caca-utils
```
libcaca-dev→ fixed in0.99.beta20-5ubuntu0.25.10.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca-dev
```
libcaca0→ fixed in0.99.beta20-5ubuntu0.25.10.2USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca0
```

Ubuntu resolute

Source: Ubuntu USN

libcaca→ fixed in0.99.beta20-6ubuntu2.1USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca
```
caca-utils→ fixed in0.99.beta20-6ubuntu2.1USN-8318-1
```
sudo apt-get install --only-upgrade -y caca-utils
```
libcaca-dev→ fixed in0.99.beta20-6ubuntu2.1USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca-dev
```
libcaca0→ fixed in0.99.beta20-6ubuntu2.1USN-8318-1
```
sudo apt-get install --only-upgrade -y libcaca0
```

Are YOU affected by CVE-2026-42046?

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-2026-42046dropped 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.

See StackPatch ($99 lifetime)