CVE-2026-17632 Langflow OSS is affected by arbitrary code execution in component generation, validation, and custom component handling

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of Python code during AST-based security scanning...

CVE-2026-17632

CVE-2026-17632 affects IBM Langflow OSS versions 1.0.0–1.10.3. The vulnerability arises from improper validation of Python code during AST-based security scanning, enabling a remote authenticated attacker to execute arbitrary code. The NVD/CVE listings report a high-severity vector with CVSS 3.1:...

EUVD-2026-53576

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of Python code during AST-based security scanning...

[SECURITY] Fedora 44 Update: python-libcst-1.8.6-4.fc44

LibCST parses Python source code as a CST tree that keeps all formatting details comments, whitespaces, parentheses, etc. It's useful for building automated refactoring codemod applications and linters. LibCST creates a compromise between an Abstract Syntax Tree AST and a traditional Concrete...

CVE-2026-61438 PraisonAI before 4.6.78 Remote Code Execution via Broken AST Sandbox

PraisonAI before 4.6.78 contains a remote code execution vulnerability in JobWorkflowExecutor.execinlinepython due to insufficient AST validation of workflow script steps. Attackers can create malicious YAML workflow files with import os statements followed by os.system calls that bypass sandbox...

CVE-2026-61447

PraisonAI before 1.6.78 contains a remote code execution vulnerability in CodeAgent.executepython that executes LLM-generated Python code without AST validation, import restrictions, or sandbox enforcement. Attackers can influence LLM output through prompt injection to exfiltrate all environment...

H2O Vulnerable to Denial of Service (DoS) and File Write

In h2oai/h2o-3 version 3.46.0.1, the runtool command exposes classes in the water.tools package through the ast parser. This includes the XGBoostLibExtractTool class, which can be exploited to shut down the server and write large files to arbitrary directories, leading to a denial of service...

CVE-2026-56777

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an abstract syntax tree AST security validator bypass in the Python Code node. An authenticated user with permission to create or modify workflows containing a Python Code node can bypass the validator and access the task executor module...

CVE-2026-56777 n8n - AST Validator Bypass in Python Code Node

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an abstract syntax tree AST security validator bypass in the Python Code node. An authenticated user with permission to create or modify workflows containing a Python Code node can bypass the validator and access the task executor module...

PT-2026-53561

Summary execute code in praisonaiagents.tools.python tools defaults to sandbox mode="sandbox", which runs user code in a subprocess wrapped with a restricted builtins dict and an AST-based blocklist. The AST blocklist embedded inside the subprocess wrapper blocked attrs, line 143 of python tools....

CVE-2026-57281

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox if a suitable script is present on the classpath of the...

CVE-2026-53753

CVE-2026-53753 affects Crawl4AI before version 0.8.7. The _safe_eval_expression() AST validator only blocks underscore-prefixed attributes, allowing access to generator/frame attributes (gi_frame, f_back, f_builtins) and enabling sandbox escape to achieve arbitrary code execution. The attack is u...

PT-2026-50164

Name of the Vulnerable Software and Affected Versions Crawl4AI versions prior to 0.8.7 Description The safe eval expression function in the computed fields feature uses an AST Abstract Syntax Tree validator that only blocks attributes starting with an underscore. Because Python generator and fram...

CVE-2026-40158

PraisonAI is a multi-agent teams system. Prior to 4.5.128, PraisonAI's AST-based Python sandbox can be bypassed using type.getattribute trampoline, allowing arbitrary code execution when running untrusted agent code. The executecodedirect function in praisonaiagents/tools/pythontools.py uses AST...

Linux Distros Unpatched Vulnerability : CVE-2026-9358

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was determined in postcss-selector-parser up to 6.1.2/7.1.2. Affected is the function toString of the file src/selectors/container.js of the...

Uncontrolled Recursion

Overview Affected versions of this package are vulnerable to Uncontrolled Recursion via the toString function in the AST Serialization. An attacker can cause uncontrolled recursion by providing specially crafted input, potentially resulting in resource exhaustion and application unavailability...

CVE-2026-8199 Post-auth memory exhaustion via bitwise match expressions

An authenticated user can cause excess memory usage via bitwise match expression AST processing of $bitsAllSet, $bitsAnySet, $bitsAllClear, and $bitsAnyClear. This contributes to memory pressure and may lead to availability loss by OOM. This issue impacts MongoDB Server v7.0 versions prior to...

Tailored Prompts, Targeted Protection: Vulnerability-Specific LLM Analysis for Smart Contracts

Smart contracts on blockchains are prone to diverse security vulnerabilities that can lead to significant financial losses due to their immutable nature. Existing detection approaches often lack flexibility across vulnerability types and rely heavily on manually crafted expert rules. In this pape...

CVE-2026-41305

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape tags,...

EUVD-2026-25383

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...