nltk: NLTK versions before 3.10.3 fail to use validated absolute paths when invoking the Graphviz dot binary in dependencyg...
CVE-2026-78680 is fixed in nltk on 1 platform by DEBIAN-CVE-2026-78680 (version 3.10.3-1), released August 26, 2026. It is not reported as exploited. Patch Radar priority: Routine.
NLTK versions before 3.10.3 fail to use validated absolute paths when invoking the Graphviz dot binary in dependencygraph.dot2img and AlignedSent._repr_svg_, allowing attackers to execute arbitrary code by placing a malicious dot binary in the search path or current working directory. Attackers can exploit bare-name binary resolution on Windows via the current working directory or on Unix-like systems via relative PATH entries to execute their binary instead of the legitimate Graphviz tool.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| nltk · Debian 14 | 3.10.3-1 | DEBIAN-CVE-2026-78680 | Aug 26, 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.