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chore(deps): update dependency nltk to v3.9.3 [security]#210

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chore(deps): update dependency nltk to v3.9.3 [security]#210
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renovate/pypi-nltk-vulnerability

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@renovate renovate bot commented Aug 13, 2024

This PR contains the following updates:

Package Change Age Confidence
nltk (source) ==3.6.6==3.9.3 age confidence

GitHub Vulnerability Alerts

CVE-2024-39705

NLTK through 3.8.1 allows remote code execution if untrusted packages have pickled Python code, and the integrated data package download functionality is used. This affects, for example, averaged_perceptron_tagger and punkt.

CVE-2025-14009

A critical vulnerability exists in the NLTK downloader component of nltk/nltk, affecting all versions. The _unzip_iter function in nltk/downloader.py uses zipfile.extractall() without performing path validation or security checks. This allows attackers to craft malicious zip packages that, when downloaded and extracted by NLTK, can execute arbitrary code. The vulnerability arises because NLTK assumes all downloaded packages are trusted and extracts them without validation. If a malicious package contains Python files, such as init.py, these files are executed automatically upon import, leading to remote code execution. This issue can result in full system compromise, including file system access, network access, and potential persistence mechanisms.


Release Notes

nltk/nltk (nltk)

v3.9.3

Compare Source

v3.9.2

Compare Source

v3.9.1

Compare Source

v3.9

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v3.8.1

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v3.8

Compare Source

v3.7

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v3.6.7

Compare Source


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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot changed the title chore(deps): update dependency nltk to v3.8.2 [security] chore(deps): update dependency nltk to v3.8.2 [security] - autoclosed Aug 15, 2024
@renovate renovate bot closed this Aug 15, 2024
@renovate renovate bot deleted the renovate/pypi-nltk-vulnerability branch August 15, 2024 08:17
@renovate renovate bot changed the title chore(deps): update dependency nltk to v3.8.2 [security] - autoclosed chore(deps): update dependency nltk to v3.8.2 [security] Aug 20, 2024
@renovate renovate bot reopened this Aug 20, 2024
@renovate renovate bot restored the renovate/pypi-nltk-vulnerability branch August 20, 2024 16:48
@renovate renovate bot changed the title chore(deps): update dependency nltk to v3.8.2 [security] chore(deps): update dependency nltk to v3.9 [security] Aug 20, 2024
@renovate renovate bot force-pushed the renovate/pypi-nltk-vulnerability branch from 9eddb63 to 5cdd034 Compare August 20, 2024 16:48
@renovate renovate bot force-pushed the renovate/pypi-nltk-vulnerability branch from 5cdd034 to 4a4e569 Compare August 10, 2025 12:23
@renovate renovate bot force-pushed the renovate/pypi-nltk-vulnerability branch from 4a4e569 to 8a44658 Compare March 1, 2026 18:58
@renovate renovate bot changed the title chore(deps): update dependency nltk to v3.9 [security] chore(deps): update dependency nltk to v3.9.3 [security] Mar 1, 2026
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