CodeQL zero to hero part 5: Debugging queries

When you're first getting started with CodeQL, you may find yourself in a situation where a query doesn't return the results you expect. Debugging these queries can be tricky, because CodeQL is a Prolog-like language with an evaluation model that's quite different from mainstream languages like...

VerilogLAVD: LLM-Aided Rule Generation for Vulnerability Detection in Verilog

Timely detection of hardware vulnerabilities during the early design stage is critical for reducing remediation costs. Existing early detection techniques often require specialized security expertise, limiting their usability. Recent efforts have explored the use of large language models LLMs for...

Breaking Obfuscation: Cluster-Aware Graph with LLM-Aided Recovery for Malicious JavaScript Detection

With the rapid expansion of web-based applications and cloud services, malicious JavaScript code continues to pose significant threats to user privacy, system integrity, and enterprise security. But, detecting such threats remains challenging due to sophisticated code obfuscation techniques and...

github.com/expr-lang/expr: Memory Exhaustion in Expr Parser with Unrestricted Input

A flaw was found in Expr. This vulnerability allows excessive memory usage and potential out-of-memory OOM crashes via unbounded input strings, where a malicious or inadvertent large expression can cause the parser to construct an extremely large Abstract Syntax Tree AST, consuming excessive memo...

H2O 资源管理错误漏洞

H2O is an in-memory platform for distributed, scalable machine learning open-sourced by H2O.ai. A resource management error vulnerability exists in H2O version 3.46.0.1, which stems from the runtool command exposing classes in the water.tools package via the ast parser, which could lead to a deni...

Memory Exhaustion in Expr Parser with Unrestricted Input

Impact If the Expr expression parser is given an unbounded input string, it will attempt to compile the entire string and generate an Abstract Syntax Tree AST node for each part of the expression. In scenarios where input size isn’t limited, a malicious or inadvertent extremely large expression c...

CVE-2025-29786

A flaw was found in Expr. This vulnerability allows excessive memory usage and potential out-of-memory OOM crashes via unbounded input strings, where a malicious or inadvertent large expression can cause the parser to construct an extremely large Abstract Syntax Tree AST, consuming excessive...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the parseExpression function in parser.go, due to the unrestricted size of input strings, which can cause the generation of large Abstract Syntax Trees ASTs. An attacker can crash...

CVE-2025-29786 Memory Exhaustion in Expr Parser with Unrestricted Input

Expr is an expression language and expression evaluation for Go. Prior to version 1.17.0, if the Expr expression parser is given an unbounded input string, it will attempt to compile the entire string and generate an Abstract Syntax Tree AST node for each part of the expression. In scenarios wher...

CVE-2025-29786 Memory Exhaustion in Expr Parser with Unrestricted Input

Expr is an expression language and expression evaluation for Go. Prior to version 1.17.0, if the Expr expression parser is given an unbounded input string, it will attempt to compile the entire string and generate an Abstract Syntax Tree AST node for each part of the expression. In scenarios wher...

CVE-2025-29786

CVE-2025-29786 concerns the Expr expression parser (Go). Prior to 1.17.0, unbounded input can cause the parser to build an excessively large AST, leading to high memory usage or an OOM crash. The issue is mitigated by a patch in 1.17.0 that enforces node budget and memory limits during parsing. R...

PT-2025-5646 · Asteval · Asteval

Name of the Vulnerable Software and Affected Versions: asteval affected versions not specified Description: The issue arises from how asteval performs attribute access verification, specifically in the on attribute node handler. This handler prevents access to attributes that are either present i...

GHSA-9R9M-FFP6-9X4V vue-i18n has cross-site scripting vulnerability with prototype pollution

Vulnerability type XSS Description vue-i18n can be passed locale messages to createI18n or useI18n. we can then translate them using t and $t. vue-i18n has its own syntax for local messages, and uses a message compiler to generate AST. In order to maximize the performance of the translation...

[SECURITY] Fedora 39 Update: rust-nu-protocol-0.96.1-3.fc39

Nushell's internal protocols, including its abstract syntax tree...

PT-2023-21863 · Comrak · Comrak

Name of the Vulnerable Software and Affected Versions: comrak versions prior to 0.17.0 Description: The issue arises when a Comrak AST is constructed manually and then converted to HTML, as the HTML formatting code assumes the AST is well-formed. This assumption can be violated if the AST contain...

SUSE CVE-2022-28946

An issue in the component ast/parser.go of Open Policy Agent v0.39.0 causes the application to incorrectly interpret every expression, causing a Denial of Service DoS via triggering out-of-range memory access...

AZL-44541 CVE-2022-37598 affecting package js-jquery 3.5.0-4

Prototype pollution vulnerability in function DEFNODE in ast.js in mishoo UglifyJS 3.13.2 via the name variable in ast.js. NOTE: the vendor considers this an invalid report...

Denial Of Service

Open policy agent is vulnerable to Denial of Service. An attacker is able to crash the system via a maliciously crafted inputs via the abstract systax tree parser in ast/compile.go...

Design/Logic Flaw

OPA is an open source, general-purpose policy engine. Under certain conditions, pretty-printing an abstract syntax tree AST that contains synthetic nodes could change the logic of some statements by reordering array literals. Example of policies impacted are those that parse and compare web paths...

Open Policy Agent 安全漏洞

Open Policy Agent is an open source general-purpose policy engine that enables uniform, context-aware policy enforcement across the stack. Open Policy Agent suffers from a security vulnerability that stems from the fact that under certain conditions, pretty-printing an Abstract Syntax Tree AST...