25 matches found
CVE-2026-12372 Server-Side Request Forgery (SSRF) in nltk/nltk
A Server-Side Request Forgery SSRF vulnerability exists in nltk/nltk versions 3.9.4 and the current develop branch. The nltk.pathsec.validatenetworkurl function, intended to prevent SSRF by rejecting internal network addresses, fails to reject IPs in the RFC 6598 shared address space 100.64.0.0/1...
CVE-2026-12372
A Server-Side Request Forgery (SSRF) exists in nltk/nltk versions 3.9.4 and the current develop branch. The function nltk.pathsec.validate_network_url() fails to reject IPs in RFC 6598 shared address space (100.64.0.0/10) because Python’s ipaddress classification does not mark such addresses as i...
UBUNTU-CVE-2026-12261
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 of package-isolated roots, and validates package integrity only after the...
UBUNTU-CVE-2026-12259
In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...
CVE-2026-12252
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 execution. These classes accept user-controllable JAR paths and execute...
CVE-2026-12252 Untrusted JAR Code Execution in Multiple Stanford Interface Classes in nltk/nltk
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 execution. These classes accept user-controllable JAR paths and execute...
Linux Distros Unpatched Vulnerability : CVE-2026-12243
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLTK version 3.9.4 is vulnerable to a path traversal attack due to an incomplete fix for GitHub Issue 3504. The UNSAFENOPROTOCOLRE regex in nltk/data.py checks...
DEBIAN-CVE-2026-12243
NLTK version 3.9.4 is vulnerable to a path traversal attack due to an incomplete fix for GitHub Issue 3504. The UNSAFENOPROTOCOLRE regex in nltk/data.py checks for literal ../ sequences but fails to account for percent-encoded traversal sequences such as ..%2f. The url2pathname function decodes...
Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : NLTK vulnerability (USN-8214-1)
The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8214-1 advisory. It was discovered that NLTK incorrectly handled file extraction when opening a maliciously...
CVE-2026-33230 nltk Vulnerable to Cross-site Scripting
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.wordnetapp contains a reflected cross-site scripting issue in the lookup... route. A crafted...
Unsafe Dependency Resolution
Overview nltk is a Natural Language Toolkit NLTK is a Python package for natural language processing. Affected versions of this package are vulnerable to Unsafe Dependency Resolution due to lack of verification or sandboxing in the StanfordSegmenter module, when unvalidated Java Archive JAR files...
NLTK 输入验证错误漏洞
NLTK is an open-source natural language toolkit developed by NLTK. It is used to support research and development in natural language processing. Versions of NLTK 3.9.2 and earlier contained a vulnerability related to input validation errors. This vulnerability stemmed from improper input...
CVE-2026-0847
NLTK up to 3.9.2 contains a path traversal vulnerability in CorpusReader classes (WordListCorpusReader, TaggedCorpusReader, BracketParseCorpusReader) that can lead to arbitrary file reads on the server. Root cause is improper sanitization/validation of file paths, enabling access to sensitive fil...
EUVD-2021-0147
Malware in sbrugna...
EUVD-2021-0148
Malware in sbrugna...
EUVD-2022-0162
Malicious code in bioql PyPI...
CVE-2021-43854
NLTK Natural Language Toolkit is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. Versions prior to 3.6.5 are vulnerable to regular expression denial of service ReDoS attacks. The vulnerability is present in...
SUSE CVE-2021-3842
nltk is vulnerable to Inefficient Regular Expression Complexity...
SUSE CVE-2021-43854
NLTK Natural Language Toolkit is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. Versions prior to 3.6.5 are vulnerable to regular expression denial of service ReDoS attacks. The vulnerability is present in...