Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the YAML processing. An attacker can execute arbitrary code by supplying crafted YAML input that triggers unsafe class loading during operations such as CloudFormation deployments or CloudFoundry...

VCR.py: Arbitrary code execution via unsafe YAML deserialization of cassette files

Summary vcrpy deserializes YAML cassette files with PyYAML's object-constructing loader yaml.CLoader / yaml.Loader instead of the safe loader yaml.CSafeLoader / yaml.SafeLoader. A cassette containing a !!python/object/apply: or similar tag therefore executes arbitrary Python code the moment the...

GHSA-RPJ2-4HQ8-938G VCR.py: Arbitrary code execution via unsafe YAML deserialization of cassette files

Summary vcrpy deserializes YAML cassette files with PyYAML's object-constructing loader yaml.CLoader / yaml.Loader instead of the safe loader yaml.CSafeLoader / yaml.SafeLoader. A cassette containing a !!python/object/apply: or similar tag therefore executes arbitrary Python code the moment the...

PT-2026-53797

Summary vcrpy deserializes YAML cassette files with PyYAML's object-constructing loader yaml.CLoader / yaml.Loader instead of the safe loader yaml.CSafeLoader / yaml.SafeLoader. A cassette containing a !!python/object/apply: or similar tag therefore executes arbitrary Python code the moment the...

CVE-2026-52903

A deserialization of untrusted data vulnerability was found in ManageIQ. The YamlLoadAliases module overrides YAML.safeload to silently fall back to YAML.unsafeload in production when a Psych::DisallowedClass error occurs. An authenticated attacker with dialog import access can exploit this to...

k8sGPT has Prompt Injection through its k8sGPT-Operator

Summary In the auto-remediation pipeline, objecttoexecution.go was deserializing the AI-generated YAML directly into a Deployment object, but there was lack of validation from the original Deployment object. Details This issue was fixed after coordination with Alex Jones. PoC To minimize the...

PT-2026-37207

Summary In the auto-remediation pipeline, object to execution.go was deserializing the AI-generated YAML directly into a Deployment object, but there was lack of validation from the original Deployment object. Details This issue was fixed after coordination with Alex Jones. PoC To minimize the...

CVE-2026-39890

Prais onAI’s AgentService.loadAgentFromFile parses YAML with js-yaml without disabling dangerous tags (e.g., !!js/function, !!js/undefined), enabling attacker to upload a malicious agent definition and achieve remote code execution on the server. Affected software: PraisonAI (before 4.5.115). Roo...

CVE-2026-39890 PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading

PraisonAI is a multi-agent teams system. Prior to 4.5.115, the AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags such as !!js/function and !!js/undefined. This allows an attacker to craft a malicious YAML file that, when parsed,...

CVE-2026-39890 PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading

PraisonAI is a multi-agent teams system. Prior to 4.5.115, the AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags such as !!js/function and !!js/undefined. This allows an attacker to craft a malicious YAML file that, when parsed,...

Deserialization of Untrusted Data

Overview PraisonAI is a PraisonAI is an AI Agents Framework with Self Reflection. PraisonAI application combines PraisonAI Agents, AutoGen, and CrewAI into a low-code solution for building and managing multi-agent LLM systems, focusing on simplicity, customisation, and efficient human-agent...

Deserialization of Untrusted Data

Overview praisonaiagents is a Praison AI agents for completing complex tasks with Self Reflection Agents Affected versions of this package are vulnerable to Deserialization of Untrusted Data through the YAML deserialization in the loadAgentFromFile function. An attacker can execute arbitrary code...

EUVD-2026-20638

PraisonAI Vulnerable to Remote Code Execution via YAML Deserialization in Agent Definition Loading...

Deserialization of Untrusted Data

Overview praisonai is a PraisonAI TypeScript AI Agents Framework - Node.js, npm, and Javascript AI Agents Framework Affected versions of this package are vulnerable to Deserialization of Untrusted Data through the YAML deserialization in the loadAgentFromFile function. An attacker can execute...

GHSA-32VR-5GCF-3PW2 PraisonAI Vulnerable to Remote Code Execution via YAML Deserialization in Agent Definition Loading

Summary The AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags such as !!js/function and !!js/undefined. This allows an attacker to craft a malicious YAML file that, when parsed, executes arbitrary JavaScript code. An attacker can...

PraisonAI Vulnerable to Remote Code Execution via YAML Deserialization in Agent Definition Loading

Summary The AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags such as !!js/function and !!js/undefined. This allows an attacker to craft a malicious YAML file that, when parsed, executes arbitrary JavaScript code. An attacker can...

Allocation of Resources Without Limits or Throttling

Overview serialize-javascript is a package to serialize JavaScript to a superset of JSON that includes regular expressions and functions. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the serialize function when handling specially...

Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects

Impact What kind of vulnerability is it? It is a Denial of Service DoS vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object an object that inherits from Array.prototype but has a very large length property, the process enters an intensive loop that...

PT-2026-28596

Name of the Vulnerable Software and Affected Versions serialize-javascript versions prior to 7.0.5 Description This issue involves a Denial of Service DoS caused by CPU exhaustion. When serializing a specially crafted "array-like" object – an object inheriting from Array.prototype with a very lar...

CVE-2026-1691 bolo-solo SnakeYAML BackupService.java importMarkdownsSync deserialization

A vulnerability has been found in bolo-solo up to 2.6.4. This impacts the function importMarkdownsSync of the file src/main/java/org/b3log/solo/bolo/prop/BackupService.java of the component SnakeYAML. Such manipulation leads to deserialization. The attack may be launched remotely. The exploit has...