Untrusted Search Path Affecting nltk package, versions [,3.10.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-NLTK-19256864
- published25 Aug 2026
- disclosed25 Aug 2026
- creditUnknown
Introduced: 25 Aug 2026
NewCVE-2026-78680 (opens in a new tab)How to fix?
Upgrade nltk to version 3.10.3 or higher.
Overview
nltk is a Natural Language Toolkit (NLTK) is a Python package for natural language processing.
Affected versions of this package are vulnerable to Untrusted Search Path through the dot2img function in nltk/parse/dependencygraph.py and the AlignedSent._repr_svg_ method in nltk/translate/api.py. An attacker can execute an arbitrary planted dot binary by supplying a malicious dot on the process search path or in the current working directory when these Graphviz rendering paths invoke dot by bare name. This can lead to arbitrary code execution in the context of the process that renders dependency graphs or SVG output, causing user systems to run attacker-controlled code instead of the intended Graphviz binary.