Search CVE reports


Toggle filters

31 – 40 of 50 results


CVE-2026-12372

Medium priority
Needs evaluation

A Server-Side Request Forgery (SSRF) vulnerability exists in nltk/nltk versions 3.9.4 and the current develop branch. The `nltk.pathsec.validate_network_url()` function, intended to prevent SSRF by rejecting internal network...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show less packages

CVE-2026-12261

Medium priority
Needs evaluation

A vulnerability in `nltk.downloader` in nltk/nltk versions <= 3.9.4 allows for cross-package resource and model poisoning. The downloader extracts package archives into shared namespaces such as `corpora/` and `taggers/` instead...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show less packages

CVE-2026-12259

Medium priority
Needs evaluation

In nltk version 3.9.4, the `nltk.downloader.Downloader._download_package()` function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show less packages

CVE-2025-71408

Medium priority
Needs evaluation

NLTK (Natural Language Toolkit) before version 3.9.3 contains an eval injection vulnerability in the nltk.collocations module that allows an attacker who controls command-line arguments to execute arbitrary Python code. When...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show less packages

CVE-2026-12252

Medium priority
Needs evaluation

In nltk/nltk versions 3.9.3 and earlier, five Stanford interface classes (StanfordPOSTagger, StanfordNERTagger, StanfordParser, StanfordDependencyParser, and StanfordNeuralDependencyParser) are vulnerable to untrusted JAR code...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show less packages

CVE-2026-12243

Medium priority
Ignored

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Not affected Not affected Not affected Not affected Not affected
Show less packages

CVE-2026-54293

Medium priority
Needs evaluation

NLTK (Natural Language Toolkit) is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. Prior to 3.10.0-rc1, nltk.data.load() in NLTK is vulnerable to...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show less packages

CVE-2026-12199

Medium priority
Needs evaluation

A vulnerability in `nltk.app.wordnet_app` up to version 3.9.3 allows unauthenticated remote shutdown of the local WordNet Browser HTTP server when started in its default mode. The server listens on all interfaces and processes a...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show less packages

CVE-2026-33236

Medium priority

Some fixes available 7 of 8

NLTK (Natural Language Toolkit) is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. In versions 3.9.3 and prior, the NLTK downloader does not...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Fixed Fixed Fixed Fixed Fixed
Show less packages

CVE-2026-33231

Medium priority

Some fixes available 7 of 8

NLTK (Natural Language Toolkit) is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. In versions 3.9.3 and prior, `nltk.app.wordnet_app` allows...

1 affected package

nltk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
nltk Fixed Fixed Fixed Fixed Fixed
Show less packages