CVE-2026-0846 · cross-distro fix matrix

CVE-2026-0846: It was discovered that NLTK incorrectly validated file paths when

Affects 7 Linux releases across 16 (distro × package) combinations. First disclosed: 2026-05-25.

Fix per ecosystem

Each block below is a distro release where CVE-2026-0846 has a known fix. Run the listed command on that distro to remediate.

Ubuntu bionic

Source: Ubuntu USN

nltk→ fixed in3.2.5-1ubuntu0.1+esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y nltk
```
python-nltk→ fixed in3.2.5-1ubuntu0.1+esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y python-nltk
```
python3-nltk→ fixed in3.2.5-1ubuntu0.1+esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y python3-nltk
```

Ubuntu focal

Source: Ubuntu USN

nltk→ fixed in3.4.5-2ubuntu0.1~esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y nltk
```
python3-nltk→ fixed in3.4.5-2ubuntu0.1~esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y python3-nltk
```

Ubuntu jammy

Source: Ubuntu USN

nltk→ fixed in3.7-1ubuntu0.1~esm2USN-8302-1
```
sudo apt-get install --only-upgrade -y nltk
```
python3-nltk→ fixed in3.7-1ubuntu0.1~esm2USN-8302-1
```
sudo apt-get install --only-upgrade -y python3-nltk
```

Ubuntu noble

Source: Ubuntu USN

nltk→ fixed in3.8.1-1ubuntu0.1~esm2USN-8302-1
```
sudo apt-get install --only-upgrade -y nltk
```
python3-nltk→ fixed in3.8.1-1ubuntu0.1~esm2USN-8302-1
```
sudo apt-get install --only-upgrade -y python3-nltk
```

Ubuntu resolute

Source: Ubuntu USN

nltk→ fixed in3.9.2-1ubuntu0.1~esm2USN-8302-1
```
sudo apt-get install --only-upgrade -y nltk
```
python3-nltk→ fixed in3.9.2-1ubuntu0.1~esm2USN-8302-1
```
sudo apt-get install --only-upgrade -y python3-nltk
```

Ubuntu trusty

Source: Ubuntu USN

nltk→ fixed in2.0~b9-0ubuntu4.1~esm6USN-8302-1
```
sudo apt-get install --only-upgrade -y nltk
```
python-nltk→ fixed in2.0~b9-0ubuntu4.1~esm6USN-8302-1
```
sudo apt-get install --only-upgrade -y python-nltk
```

Ubuntu xenial

Source: Ubuntu USN

nltk→ fixed in3.1-1ubuntu0.1+esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y nltk
```
python-nltk→ fixed in3.1-1ubuntu0.1+esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y python-nltk
```
python3-nltk→ fixed in3.1-1ubuntu0.1+esm4USN-8302-1
```
sudo apt-get install --only-upgrade -y python3-nltk
```

Are YOU affected by CVE-2026-0846?

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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