nautilus

Nautilus 2.0 Nautilus is a coverage guided, grammar based fuzzer. You can use it to improve your test coverage and find more bugs. By specifying the grammar of semi valid inputs, Nautilus is able to perform complex mutation and to uncover more interesting test cases. Many of the ideas behind this...

nautilus

Nautilus 2.0 Nautilus es un fuzzer basado en gramática y guiado por cobertura. Puedes usarlo para mejorar tu cobertura de pruebas y encontrar más errores. Al especificar la gramática de entradas semi válidas, Nautilus es capaz de realizar mutaciones complejas y descubrir casos de prueba más...

GHSA-FF5C-CP5C-9WJF 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 ...

Metamorphism: A Mathematical Challenge for Antivirus Technology

Metamorphic viruses, currently the most advanced computer viruses in the wild, have the unique ability of mutating their own code virtually into infinitely many highly dissimilar copies of themselves that nevertheless have the same functionality. This ability -- metamorphism -- together with othe...

XGrammar affected by Denial of Service by infinite recursion grammars

SummaryThis issue: http://github.com/mlc-ai/xgrammar/issues/250 should have it's own security advisory. Since several tools accept and pass user supplied grammars to xgrammar, and it is so easy to trigger it seems like a High...

[SECURITY] Fedora 43 Update: python-ply-3.11-33.fc43

PLY is a straightforward lex/yacc implementation. Here is a list of its essential features: It is implemented entirely in Python. It uses LR-parsing which is reasonably efficient and well suited for larger grammars. PLY provides most of the standard lex/yacc features including support for empty...

[SECURITY] Fedora 44 Update: python-ply-3.11-33.fc44

PLY is a straightforward lex/yacc implementation. Here is a list of its essential features: It is implemented entirely in Python. It uses LR-parsing which is reasonably efficient and well suited for larger grammars. PLY provides most of the standard lex/yacc features including support for empty...

CVE-2022-38884

The d8s-grammars for python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-strings package. The affected version is 0.1.0...

EUVD-2022-0377

Malicious code in bioql PyPI...

EUVD-2025-27083

Malicious code in bioql PyPI...

Improper Input Validation

xgrammar is vulnerable to improper input validation. The vulnerability is due to the lack of validation on user-supplied grammars, which allows an attacker to easily trigger the flaw and potentially exploit affected tools that pass untrusted grammars to xgrammar...

CVE-2025-58446

xgrammar is an open-source library for efficient, flexible, and portable structured generation. A grammar optimizer introduced in 0.1.23 processes large grammars 100k characters at very low rates, and can be used for DOS of model providers. This issue is fixed in version 0.1.24. Mitigation Upgrad...

CVE-2025-58446

xgrammar is an open-source library for efficient, flexible, and portable structured generation. A grammar optimizer introduced in 0.1.23 processes large grammars 100k characters at very low rates, and can be used for DOS of model providers. This issue is fixed in version 0.1.24...

CVE-2025-58446

The CVE-2025-58446 entry concerns xgrammar, an open-source library for structured generation. The root cause is a grammar optimizer introduced in 0.1.23 that processes very large grammars (>100k characters) with very low throughput, enabling denial-of-service against model providers. A fix is ...

CVE-2025-58446 xgrammar vulnerable to denial of service by huge enum grammar

xgrammar is an open-source library for efficient, flexible, and portable structured generation. A grammar optimizer introduced in 0.1.23 processes large grammars 100k characters at very low rates, and can be used for DOS of model providers. This issue is fixed in version 0.1.24...

CVE-2025-58446 xgrammar vulnerable to denial of service by huge enum grammar

xgrammar is an open-source library for efficient, flexible, and portable structured generation. A grammar optimizer introduced in 0.1.23 processes large grammars 100k characters at very low rates, and can be used for DOS of model providers. This issue is fixed in version 0.1.24...

PT-2025-36398

Name of the Vulnerable Software and Affected Versions xgrammar versions 0.1.23 Description xgrammar is an open-source library for efficient, flexible, and portable structured generation. A grammar optimizer introduced in version 0.1.23 can be exploited to cause a denial-of-service DOS attack on...

GHSA-5CMR-4PX5-23PC XGrammar affected by Denial of Service by infinite recursion grammars

Summary This issue: http://github.com/mlc-ai/xgrammar/issues/250 should have it's own security advisory. Since several tools accept and pass user supplied grammars to xgrammar, and it is so easy to trigger it seems like a High...

XGrammar affected by Denial of Service by infinite recursion grammars

Summary This issue: http://github.com/mlc-ai/xgrammar/issues/250 should have it's own security advisory. Since several tools accept and pass user supplied grammars to xgrammar, and it is so easy to trigger it seems like a High...

PGF Grammar Memory Management Privilege Escalation

The vulnerability of the native code library for analyzing and linearizing PGF grammars is related to the use of memory after deallocation in Decoder.cpp. Exploiting this vulnerability can allow an attacker to gain elevated privileges within the system...