CVE-2026-0847

CVE-2026-0847 — NLTK Multiple CorpusReader Classes: Arbitrary File Read via Path Traversal -orange?style=for-the-badge Overview Field| Details ---|--- CVE ID| CVE-2026-0847 Package| nltk Natural Language Toolkit Registry| PyPI Affected Versions| = 3.9.2 Vulnerability Type| CWE-22: Path Traversal...

CVE-2026-12243-NLTK-PoC

CVE-2026-12243 — NLTK Path Traversal Lab A small, reproducible Docker lab that contrasts the percent-encoded path traversal behavior in NLTK 3.9.4 with the corrected behavior in NLTK 3.10.0. The vulnerable version validates the resource name before URL decoding. The fixed payload...

CVE-2026-0848

CVE-2026-0848 — NLTK StanfordSegmenter: Arbitrary Code Execution via Untrusted JAR Loading -red?style=for-the-badge -brightgreen?style=for-the-badge Overview Field| Details ---|--- CVE ID| CVE-2026-0848 Package| nltk Natural Language Toolkit Registry| PyPI Affected Versions| = 3.9.2 Vulnerability...

CVE-2026-0848-Scanner---Herramienta-de-Detecci-n

🔍 CVE-2026-0848 Scanner Detection tool for the CVE-2026-0848 vulnerability in NLTK arbitrary code execution in StanfordSegmenter. ⚡ Installation git clone https://github.com/tu-usuario/CVE-2026-0848-Scanner.git cd CVE-2026-0848-Scanner pip install -r requirements.txt...

CVE-2026-0848-PoC-Improper-Input-Validation

CVE-2026-0848 - NLTK StanfordSegmenter RCE PoC ⚠️ WARNING This code executes arbitrary commands on your system. Use ONLY in virtual machines or isolated containers. Description Functional PoC for CVE-2026-0848. Demonstrates how a malicious JAR file can execute arbitrary code when loaded by NLTK...

CVE-2019-14751_PoC

CVE-2019-14751PoC A Proof of Concept for CVE-2019-14751 Vulnerability Description NLTK Downloader before version 3.5 is vulnerable to a directory traversal, allowing attackers to write arbitrary files via a ../ dot dot slash in an NLTK package ZIP archive that is mishandled during extraction. For...

Security Bulletin: Maximo AI Service uses multiple third party dependencies which are vulnerable to multiple CVEs.

Summary Maximo AI Service uses mlflow-3.11.1-py3-none-any.whl, nltk-3.10.0-py3-none-any.whl, gitpython-3.1.53-py3-none-any.whl, and glib2 2.68.4-19.el98.1 which are vulnerable to CVE-2026-64849, CVE-2026-69148, CVE-2026-79657, CVE-2026-79674, CVE-2026-79675, CVE-2026-79676, CVE-2026-78675,...

Security Bulletin: Maximo AI Service uses multiple third party dependencies which are vulnerable to multiple CVEs.

Summary Maximo AI Service uses transformers-5.8.0-py3-none-any.whl, mlflow-3.11.1-py3-none-any.whl, sqlparse-0.5.4-py3-none-any.whl, nltk-3.10.0-py3-none-any.whl, gitpython-3.1.53-py3-none-any.whl, and cryptography-46.0.7-cp311-abi3-macosx109universal2.whl which are vulnerable to CVE-2026-80047,...

Security Bulletin: Multiple Vulnerabilities in IBM Concert Operate / IBM Cloud Pak for AIOps

Summary Multiple vulnerabilities were addressed in IBM Concert Operate version 5.2.0 Vulnerability Details CVEID:CVE-2026-24281 DESCRIPTION: Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS PTR when IP SAN validation fails, allowing attackers who control or spoof...

SUSE CVE-2026-79657

NLTK versions before 3.10.3 contain a remote code execution vulnerability in allowlisted pickle loaders that trust entire module namespaces instead of specific safe callables. Attackers can craft malicious pickle payloads invoking dangerous in-namespace functions like ReppTokenizer.execute and...

CVE-2026-79657

A flaw was found in NLTK. This vulnerability allows a remote attacker to achieve arbitrary code execution by supplying a specially crafted model or tokenizer artifact for the application to process. The issue occurs because the deserialization allowlist mechanism permits entire software namespace...

CVE-2026-78683

A flaw was found in NLTK. This vulnerability allows arbitrary code execution due to unsafe deserialization, where data loaded from storage is converted back into active objects without adequate restrictions. When the TransitionParser component processes a model file, it fails to enforce safe...

The vulnerabilities of the IPIPANCorpusReader, CrubadanCorpusReader, and LinThesaurusCorpusReader classes in the NLTK library package for symbolic and statistical processing of natural language data allow attackers to gain unauthorized access to protected information.

The vulnerability of the IPIPANCorpusReader, CrubadanCorpusReader, and LinThesaurusCorpusReader classes in the NLTK library for symbolic and statistical processing of natural language data is related to an incorrect limitation on the path name to the restricted-access directory. Exploiting this...

The vulnerabilities of the functions nltk.parse.dependencygraph.dot2img() and nltk.translate.api.AlignedSent._repr_svg_() in the NLTK library for symbolic and statistical processing of natural language allow attackers to execute arbitrary code.

The vulnerabilities of the nltk.parse.dependencygraph.dot2img and nltk.translate.api.AlignedSent.reprsvg functions in the NLTK library for symbolic and statistical processing of natural language are related to the use of an insecure search path. Exploiting these vulnerabilities could allow...

IBM Cognos Analytics 12.0.4 < 12.0.4 FP3 / 12.1.x < 12.1.3 FP2 Multiple Vulnerabilities (7287209)

The version of IBM Cognos Analytics installed on the remote host is 12.0.4 prior to 12.0.4 FP3, or 12.1.x prior to 12.1.3 FP2. It is, therefore, affected by multiple vulnerabilities as referenced in the IBM Security Bulletin No. 7287209: - NLTK versions 3.9.2 and prior are vulnerable to arbitrary...

NLTK: Quadratic CPU Exhaustion in `XMLCorpusView._read_xml_fragment()`

SummaryXMLCorpusView.readxmlfragment reads a corpus file in 1 KiB blocks, appendingeach block to a growing fragment string, then calls VALIDXMLRE.matchfragmenton the full accumulated buffer every iteration. Because each iteration rescans theentire accumulated fragment, the total amount of work...

NLTK: Uncontrolled resource consumption in RecursiveDescentParser via ambiguous or left-recursive grammars

nltk.parse.RecursiveDescentParser and SteppingRecursiveDescentParser enumerate parses top-down with no bound on the number of recursive steps. A small, crafted context-free grammar makes a short input consume unbounded CPU and/or exhaust the Python recursion stack, pinning a process indefinitely ...

NLTK: Uncontrolled search path when invoking the Graphviz 'dot' binary

Two NLTK sites executed the Graphviz dot program by bare name, so process creation resolved it via the search path — and on Windows via the current working directory — rather than a validated absolute location. An attacker who can place a file named dot where resolution looks the CWD on Windows, ...

PYSEC-2026-3869 NLTK: Uncontrolled resource consumption in RecursiveDescentParser via ambiguous or left-recursive grammars

nltk.parse.RecursiveDescentParser and SteppingRecursiveDescentParser enumerate parses top-down with no bound on the number of recursive steps. A small, crafted context-free grammar makes a short input consume unbounded CPU and/or exhaust the Python recursion stack, pinning a process indefinitely ...

PYSEC-2026-3868 NLTK: Uncontrolled search path when invoking the Graphviz 'dot' binary

Two NLTK sites executed the Graphviz dot program by bare name, so process creation resolved it via the search path — and on Windows via the current working directory — rather than a validated absolute location. An attacker who can place a file named dot where resolution looks the CWD on Windows, ...