Security Bulletin: Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

Summary A vulnerability allowed unauthenticated attackers to achieve remote code execution on default-configured instances. The vulnerability combined two distinct issues: an unauthenticated endpoint that issued superuser bearer tokens to any network caller, and a code validation endpoint that...

CVE-2026-34398: Improper Neutralization of Directives in Dynamically Evaluated Code

FreeCAD is a free and open-source multiplatform 3D parametric modeler. From 0.19 until 1.1.1, src/Mod/BIM/bimcommands/BimProjectManager.py in the BIM Project Manager Load Template flow passes attacker-controlled FCStd Meta property values for wpposition, wpu, wpv, and wpaxis directly to eval,...

CVE-2026-73486 Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV

Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a static regex blocklist that can be bypassed through obfuscation techniques, enabling attackers to...

EUVD-2026-57014

calibre is an e-book manager. Prior to 9.12.0, calibre processes attacker-controlled compositetemplate metadata from a malicious EPUB, OPF, PDF, or similar file through program: and a nested template call whose formatter does not inherit allowpythontemplates=False, allowing a nested python:...

CVE-2026-73233

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the FEM Displacement Constraint task dialog in src/Mod/Fem/Gui/TaskFemConstraintDisplacement.cpp passes the xDisplacementFormula, yDisplacementFormula, and zDisplacementFormula fields of a...

CVE-2026-73233: Improper Control of Generation of Code

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the FEM Displacement Constraint task dialog in src/Mod/Fem/Gui/TaskFemConstraintDisplacement.cpp passes the xDisplacementFormula, yDisplacementFormula, and zDisplacementFormula fields of a...

PT-2026-68132

Name of the Vulnerable Software and Affected Versions ESPHome versions prior to 2026.7.0-dev Description An operator-precedence bug exists in the cv.url validator within esphome/config validation.py. Due to the and operator binding tighter than or, any file: URI passes validation regardless of th...

PT-2026-67908

Summary The validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This...

CVE-2026-70470: Incomplete List of Disallowed Inputs

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, Flowise validatePythonCodeForDataFrame in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide...

PT-2026-65659

Summary datamodel-code-generator honours a custom x-python-type JSON-Schema extension that lets a schema author override the generated Python type for a field. The value is forwarded verbatim into the generated Python source as the field annotation, with a single sanitisation pass that is trivial...

PT-2026-76489

NLTK Natural Language Toolkit before version 3.9.3 contains an eval injection vulnerability in the nltk.collocations module that allows an attacker who controls command-line arguments to execute arbitrary Python code. When collocations.py is invoked directly, the main block passes command-line...

CVE-2026-47391: Improper Neutralization of Directives in Dynamically Evaluated Code

PraisonAI is a multi-agent teams system. Prior to version 4.6.40, PraisonAI's first-party A2A server example exposes an unauthenticated A2A JSON-RPC endpoint and registers a calculateexpression tool implemented with Python eval. The example also binds to 0.0.0.0. A remote unauthenticated attacker...

CVE-2026-9135 Policies Component Dynamic CodeInput Fields Bypass Custom Component Validation

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow versions up to 1.9.2 commit 94981c443d4918517b9e8163d70fc598dc33a32d contain a code injection vulnerability in the Policies component's ToolGuard integration that bypasses the allowcustomcomponents=false security control. The vulnerability exists...

CVE-2026-9135

CVE-2026-9135 affects IBM Langflow OSS versions 1.0.0–1.10.0. The vulnerability lies in the Policies component’s ToolGuard integration: validation only checks the main component code field (node_template["code"]["value"]) and does not validate dynamic CodeInput fields that store generated ToolGua...

CVE-2026-9135: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow versions up to 1.9.2 commit 94981c443d4918517b9e8163d70fc598dc33a32d contain a code injection vulnerability in the Policies component's ToolGuard integration that bypasses the allowcustomcomponents=false security control. The vulnerability exists...

CVE-2026-61433

PraisonAI before 4.6.78 fails to safely encode deployment configuration values when generating Python source code for API servers. Attackers can inject arbitrary Python expressions through the deploy.api.host and agentsfile configuration parameters that execute when the generated server starts or...

CVE-2026-61437: Protection Mechanism Failure

PraisonAI pip package praisonaiagents before 1.6.78 contains an unsafe dynamic module loading vulnerability in AgentFlow.resolvepydanticclass src/praisonai-agents/praisonaiagents/workflows/workflows.py. When a workflow step uses a string outputpydantic reference, the framework locates and imports...

PYSEC-2026-1472 Jinja has a sandbox breakout through malicious filenames

A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used. To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether...

EUVD-2026-38514

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...

CVE-2026-48519 Langflow: Unauthenticated RCE in Shareable Playgrounds

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" or "Public Flows" in code contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessi...