CVE-2026-62383
Fixed in a distro release EPSS <1%CVSS 5.5
nltk versions before 3.10.2 contain a symlink-based arbitrary file read vulnerability in IPIPANCorpusReader methods that bypass nltk.pathsec validation entirely. Attackers can place a symlink in the corpus root directory and read arbitrary files accessible to the process by calling channels(), domains(), categories(), or fileids() methods with the symlink filename.
Products: nltk
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | nltk | 3.10.2 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | nltk | no fix |
| Debian 13 | nltk | no fix |
| Debian 14 | nltk | 3.10.3-1 |
| Ubuntu 26.10 | nltk | no fix |
| Ubuntu Pro 14.04 LTS | nltk | no fix |
| Ubuntu Pro 16.04 LTS | nltk | no fix |
| Ubuntu Pro 18.04 LTS | nltk | no fix |
| Ubuntu Pro 20.04 LTS | nltk | no fix |
| Ubuntu Pro 22.04 LTS | nltk | no fix |
| Ubuntu Pro 24.04 LTS | nltk | no fix |
| Ubuntu Pro 26.04 LTS | nltk | no fix |