nltk: NLTK versions before 3.9.4 contain a symlink escape vulnerability in CorpusReader.open() that allows local attackers...
CVE-2026-70626 is fixed in nltk on 1 platform by DEBIAN-CVE-2026-70626 (version 3.10.0-1), released August 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.
NLTK versions before 3.9.4 contain a symlink escape vulnerability in CorpusReader.open() that allows local attackers to read arbitrary files outside the corpus root. The vulnerability exists because path validation is lexical and does not account for symlink resolution, enabling attackers to place symlinks inside the corpus root to access files outside the intended boundary.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| nltk · Debian 14 | 3.10.0-1 | DEBIAN-CVE-2026-70626 | Aug 22, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.