Geek-Guy.com

Tag: opensource

Flowise’s MCP implementation can run ghost commands

Enterprises using the lightweight, open-source Flowise platform to power self-hosted AI workloads have a new near-max severity issue to worry about. Researchers at Obsidian Security have detailed a one-click remote code execution (RCE) vulnerability affecting self-hosted Flowise deployments through its implementation of Model Context Protocol (MCP) stdio servers. The problem is essentially a sandboxing failure…

Hottest cybersecurity open-source tools of the month: May 2026

Presented here is a curated selection of noteworthy open-source cybersecurity solutions that have drawn recognition for their ability to enhance security postures across diverse settings. Pipelock: Open-source AI agent firewall AI coding agents run with shell access, environment variables containing API keys, and unrestricted internet connectivity, creating a single point of failure where one compromised…

Gitea Vulnerability Exposes Private Container Images without Authentication

Cybersecurity researchers have disclosed a security flaw in Gitea, an open-source, self-hosted platform for version control, that allows unauthenticated remote attackers to pull private container images from Gitea deployments without requiring an account, password, or other credentials. The vulnerability, tracked as CVE-2026-27771 (CVSS score: N/A), affects all versions of Gitea prior to 1.26.2

Vigolium: Open-source vulnerability scanner

Vigolium, an open-source vulnerability scanner that combines deterministic scanning with AI-driven auditing, launched its initial open-source release this month. The project ships 235+ scanner modules and an in-process agent runtime called olium that handles autonomous endpoint discovery, attack planning, and finding triage. The tool exposes two scanning paths. vigolium scan runs a multi-phase deterministic pipeline…

TeamPCP Compromised LiteLLM in AI Supply Chain Attack

A supply chain attack targeting the open-source AI ecosystem shows how threat actors are increasingly abusing developer tools and AI infrastructure to steal credentials and compromise cloud environments.  Researchers found that TeamPCP compromised LiteLLM, a widely used open-source Python library that connects applications to more than 100 LLM providers through OpenAI-compatible APIs.   The attack reportedly…

As AI speeds coding, CVE Lite CLI keeps security deliberately AI-free

As AI coding assistants accelerate software development, one OWASP-backed open-source project is arguing that dependency security tooling still arrives too late to be truly useful. CVE Lite CLI, a JavaScript and TypeScript dependency vulnerability scanner focused on local lockfile analysis, is positioning itself around a simple idea. Developers should see dependency risks while they are…

Google leaks details for Chromium bug that can turn browsers into bots

Chromium — the open-source browser that underpins Google Chrome, Microsoft Edge, and Opera, among others — contains an unpatched vulnerability that attackers can exploit to execute JavaScript code persistently across browser restarts. As a result, the flaw can be used to hijack users’ browsers for distributed denial-of-service attacks, run crypto miners, and more. The vulnerability…

Pros And Cons Of Open Source CMS

Today, we will show you the pros and cons of open-source CMS. In today’s digital landscape, Content Management Systems (CMS) are the cornerstones of website creation. These software applications empower users to publish content, manage media, and build websites without extensive coding knowledge. However, a crucial decision arises: Open-source or closed-source CMS? Let’s delve into…

CISA chief frets about open-source vulnerabilities, delayed security improvements

Securing some of the open-source technology that serves as the backbone for all modern digital infrastructure is going to require some “hard decisions” amid a wave of malware attacks, the leader of the Cybersecurity and Infrastructure Security Agency said Thursday. “The open-source community is one that I’m particularly worried about when we start to think…

Microsoft Open-Sources RAMPART and Clarity to Secure AI Agents During Development

Microsoft has unveiled two new open-source tools called RAMPART and Clarity to assist developers in better testing the security of artificial intelligence (AI) agents. RAMPART, short for Risk Assessment and Measurement Platform for Agentic Red Teaming, functions as a Pytest-native safety and security testing framework for writing and running safety and security tests for AI…

AntV data visualization tool the latest to be hit by ongoing npm supply chain attacks

The world’s largest open-source registry, node package manager (npm), has been hit by another fast-moving malware attack, this time targeting the widely-used AntV enterprise data visualization tool. Unlike last week’s high-profile npm attack on TanStack, which exploited a complex GitHub Actions cache poisoning weakness, the latest incident early on May 19 took the more conventional…

PraisonAI vulnerability gets scanned within 4 hours of disclosure

A newly disclosed authentication bypass flaw in the open-source AI orchestration framework PraisonAI was probed by internet scanners less than four hours after its public disclosure. According to Sysdig observations, roughly three hours and 44 minutes after a GitHub advisory dropped, a scanner identifying itself as “CVE-Detector/1.0” was already looking through the exposed PraisonAI instances…

Six new dnsmasq vulnerabilities open the door to DNS cache poisoning, local root

Recent disclosures have revealed that open-source networking tool dnsmasq is grappling with a serious set of vulnerabilities. The problems span memory safety and input validation, with researchers identifying heap buffer overflows, heap corruption, and code execution bugs among the issues. Taken together, the security flaws open the door to various attacks: poisoning cached DNS entries,…

Rustinel: Open-source endpoint detection for Windows and Linux

Open-source endpoint detection has long been split between Windows-focused tools built around Sysmon and Linux tools built around eBPF or auditd. Defenders running mixed environments have had to stitch together separate pipelines, separate rule sets, and separate maintenance burdens. Rustinel, a Rust-based endpoint agent, is an attempt to collapse that work into a single codebase.…

MetInfo CMS CVE-2026-29014 Exploited for Remote Code Execution Attacks

Threat actors are actively exploiting a critical security flaw impacting an open-source content management system (CMS) known as MetInfo, according to new findings from VulnCheck. The vulnerability in question is CVE-2026-29014 (CVSS score: 9.8), a code injection flaw that could result in arbitrary code execution. “MetInfo CMS versions 7.9, 8.0, and 8.1 contain an unauthenticated…

Fleet hopes to be the MDM provider for the AI Era

Fleet, the independent, open-source, multi-platform MDM service, recently announced its new partner program for VARs and MSPs serving enterprise customers and recruited MobileIron co-founder Suresh Batchu to serve on the company’s board. With those moves in mind, I caught up with company CEO Mike McNeil to find out more about the Fleet’s plans. Given the company’s…

Product showcase: LuLu reveals unauthorized outbound connections from Mac apps

LuLu is a free, open-source firewall for macOS that lets you control which apps are allowed to send data from your computer. macOS includes a built-in firewall, but it mainly handles incoming connections. LuLu also monitors outgoing traffic. Installing and setting Up LuLu After downloading and installing the app, I allowed the LuLu Network Extension…

LMDeploy CVE-2026-33626 Flaw Exploited Within 13 Hours of Disclosure

A high-severity security flaw in LMDeploy, an open-source toolkit for compressing, deploying, and serving LLMs, has come under active exploitation in the wild less than 13 hours after its public disclosure. The vulnerability, tracked as CVE-2026-33626 (CVSS score: 7.5), relates to a Server-Side Request Forgery (SSRF) vulnerability that could be exploited to access sensitive data.…

SmokedMeat: Open-source tool shows what attackers do inside CI/CD pipelines

Boost Security has released SmokedMeat, an open-source framework that runs attack chains against CI/CD infrastructure so engineering and security teams can see what an attacker would do in their specific environment. What the tool does SmokedMeat takes a flagged pipeline vulnerability and executes a live demonstration against a team’s own infrastructure. Starting from a single…

Product showcase: Syncthing for secure, private file synchronization

Syncthing is a free and open-source application that synchronizes files directly between your devices. Instead of uploading data to a central server, it uses a peer-to-peer approach, transferring files whenever peers are online. This decentralized model ensures that your data remains private and under your control. Syncthing monitors shared folders for changes. When a file…

Critical nginx UI tool vulnerability opens web servers to full compromise

Security vendor Pluto Security has published details of a critical vulnerability in the open-source nginx UI web server configuration tool that has been under active exploitation by cybercriminals since March. News of the flaw, identified as CVE-2026-33032, first appeared on the National Vulnerability Database (NVD) on March 30, the same day that threat intelligence companies…

Actively Exploited nginx-ui Flaw (CVE-2026-33032) Enables Full Nginx Server Takeover

A recently disclosed critical security flaw impacting nginx-ui, an open-source, web-based Nginx management tool, has come under active exploitation in the wild. The vulnerability in question is CVE-2026-33032 (CVSS score: 9.8), an authentication bypass vulnerability that enables threat actors to seize control of the Nginx service. It has been codenamed MCPwn by Pluto Security. “

Critical flaw in Marimo Python notebook exploited within 10 hours of disclosure

A critical pre-authentication remote code execution vulnerability in Marimo, an open-source Python notebook platform owned by AI cloud company CoreWeave, was exploited in the wild less than 10 hours after its public disclosure, according to the Sysdig Threat Research Team. The vulnerability, tracked as CVE-2026-39987 with a severity score of 9.3 out of 10, affects…

Marimo RCE Flaw Exploited Within Hours of Disclosure

A vulnerability in the open-source Marimo Python notebook platform is already being actively exploited, underscoring how quickly attackers can turn newly disclosed flaws into real-world attacks.  Less than 10 hours after public disclosure, threat actors developed a working exploit and began targeting exposed systems. “Within 9 hours and 41 minutes of the vulnerability advisory’s publication,…

Z.ai unveils GLM-5.1, enabling AI coding agents to run autonomously for hours

Chinese AI company Z.ai has launched GLM-5.1, an open-source coding model it says is built for agentic software engineering. The release comes as AI vendors move beyond autocomplete-style coding tools toward systems that can handle software tasks over longer periods with less human input. Z.ai said GLM-5.1 can sustain performance over hundreds of iterations, an…

Microsoft’s new Agent Governance Toolkit targets top OWASP risks for AI agents

Microsoft has quietly introduced the Agent Governance Toolkit, an open-source project designed to monitor and control AI agents during execution as enterprises try to move them into production workflows. The toolkit, which is a response to the Open Worldwide Application Security Project’s (OWASP) emerging focus on AI and LLM security risks, adds a runtime security…

Microsoft’s new Agent Governance Toolkit targets top OWASP risks for AI agents

Microsoft has quietly introduced the Agent Governance Toolkit, an open-source project designed to monitor and control AI agents during execution as enterprises try to move them into production workflows. The toolkit, which is a response to the Open Worldwide Application Security Project’s (OWASP) emerging focus on AI and LLM security risks, adds a runtime security…

Flowise AI Agent Builder Under Active CVSS 10.0 RCE Exploitation; 12,000+ Instances Exposed

Threat actors are exploiting a maximum-severity security flaw in Flowise, an open-source artificial intelligence (AI) platform, according to new findings from VulnCheck. The vulnerability in question is CVE-2025-59528 (CVSS score: 10.0), a code injection vulnerability that could result in remote code execution. “The CustomMCP node allows users to input configuration settings for connecting

Product showcase: Proton Authenticator is an end-to-end encrypted, open source 2FA app

Proton Authenticator is a free and open-source two-factor authentication (2FA) app that generates time-based one-time passwords (TOTP) to help secure online accounts. It is available on Windows, macOS, Linux, iOS, and Android, allowing users to access their verification codes across devices. The app is designed to work without ads or tracking. A Proton account is…

Euro-Office billed as Europe’s sovereign alternative to Microsoft Office

A group of European technology firms has launched a new open-source office suite aimed at offering a sovereign alternative to Microsoft Office. Euro-Office consists of four core applications — a document editor, spreadsheet program, presentation tool, and PDF editor — and is built on the open-source OnlyOffice suite. It supports Microsoft Office file formats DOCX,…

Attack on axios software developer tool threatens widespread compromises

A hacker briefly delivered malware this week through a popular open-source project for software developers that has an estimated 100 million weekly downloads, raising the possibility of compromises spreading widely through a supply-chain attack. Axios is a JavaScript client library used in web requests. The unknown attacker hijacked the npm account — npm being a…

Rspamd 4.0.0 ships memory savings, a new scan protocol, and a required migration step

The open-source spam filtering platform Rspamd released version 4.0.0, delivering infrastructure changes across its scan protocol, memory model, hash storage, and configuration system. Several of the changes are breaking, and at least one requires a migration step before upgrade. A new scan protocol The release introduces a /checkv3 endpoint that replaces HTTP headers with structured…

Hottest cybersecurity open-source tools of the month: March 2026

Presented here is a curated selection of noteworthy open-source cybersecurity solutions that have drawn recognition for their ability to enhance security postures across diverse settings. BlacksmithAI: Open-source AI-powered penetration testing framework BlacksmithAI is an open-source penetration testing framework that uses multiple AI agents to execute different stages of a security assessment lifecycle. BlacksmithAI runs as…

China’s use of open‑source AI threatens the US lead in AI development, US Commission warns

China’s open-source AI strategy is building a self-reinforcing competitive advantage that US export controls were not designed to counter, the US-China Economic and Security Review Commission has warned. “US export controls primarily target the digital loop, restricting access to advanced chips used for frontier model training — but are not well suited to addressing the…

Trivy vulnerability scanner backdoored with credential stealer in supply chain attack

Attackers have compromised the widely used open-source Trivy vulnerability scanner, injecting credential-stealing malware into official releases and GitHub Actions used by thousands of CI/CD workflows. The breach could trigger a cascade of additional supply-chain compromises if impacted projects and organizations don’t rotate their secrets immediately. The attack, disclosed by Trivy maintainers today, results from an…

Trivy Security Scanner GitHub Actions Breached, 75 Tags Hijacked to Steal CI/CD Secrets

Trivy, a popular open-source vulnerability scanner maintained by Aqua Security, was compromised a second time within the span of a month to deliver malware that stole sensitive CI/CD secrets. The latest incident impacted GitHub Actions “aquasecurity/trivy-action” and “aquasecurity/setup-trivy,” which are used to scan Docker container images for vulnerabilities and set up GitHub Actions workflow

Fingerprint’s MCP Server turns device intelligence into real-time AI-powered fraud insights

Fingerprint has announced the launch of its Model Context Protocol (MCP) Server, an open-source MCP implementation for the fraud prevention space. The new server enables organizations to connect any AI assistant or agent directly to Fingerprint’s device intelligence platform, turning fraud analysis into real-time, AI-powered insights. The Fingerprint MCP Server uses a standard open protocol…

Critical defect in Java security engine poses serious downstream security risks

A maximum-severity vulnerability in pac4j, an open-source library integrated into hundreds of software packages and repositories, poses a significant security threat, but has thus far received scant attention. The defect in the Java security engine, which handles authentication across multiple frameworks, has not been exploited in the wild since code review firm CodeAnt AI published…

AVideo Zero-Click Flaw Lets Attackers Hijack Live Streams

A flaw in the open-source AVideo platform requires no authentication and allows attackers to remotely execute commands and take over affected servers. Exploitation of the vulnerability “… can lead to full server compromise, data exfiltration (e.g., configuration secrets, internal keys, credentials), and service disruption,” said researchers. Inside the AVideo Server Takeover Risk AVideo is an…

AWS-LC Flaws Could Bypass Certificate Verification

Amazon AWS has disclosed several vulnerabilities in AWS-LC, its open-source cryptographic library.  The issues include flaws that could allow certificate verification to be bypassed and weaknesses that may expose encryption timing information.  One of the vulnerabilities, CVE-2026-3338, “allows an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes,” said AWS in…

FreeScout vulnerability enables unauthenticated, zero-click RCE via email (CVE-2026-28289)

A newly discovered vulnerability (CVE-2026-28289) in the open-source help desk platform FreeScout could allow attackers to take over vulnerable servers by sending a specially crafted email to a FreeScout mailbox. CVE-2026-28289 exploitation FreeScout is a free, open-source help desk and shared inbox system used by businesses or teams to manage customer support conversations in one…

From LinkedIn to tailored attack in 30 minutes

GUEST OPINION:    How AI accelerates target profiling for cybercrime Key takeaways: AI has turned open-source intelligence (OSINT) from a manual effort into an automated pipeline, dramatically lowering the time, cost, and skills required to build target profiles at scale. LinkedIn content (posts, images, and metadata) now functions as machine-readable intelligence that can be enriched, ranked, and operationalised…

Google Confirms CVE-2026-21385 in Qualcomm Android Component Exploited

Google on Monday disclosed that a high-severity security flaw impacting an open-source Qualcomm component used in Android devices has been exploited in the wild. The vulnerability in question is CVE-2026-21385 (CVSS score: 7.8), a buffer over-read in the Graphics component. “Memory corruption when adding user-supplied data without checking available buffer space,” Qualcomm said in an…

BlacksmithAI: Open-source AI-powered penetration testing framework

BlacksmithAI is an open-source penetration testing framework that uses multiple AI agents to execute different stages of a security assessment lifecycle. A multi-agent structure for offensive workflows BlacksmithAI runs as a hierarchical system in which an orchestrator coordinates task execution across specialized agents. Each agent maps to a common penetration testing function. The recon agent…

Hottest cybersecurity open-source tools of the month: February 2026

This month’s roundup features exceptional open-source cybersecurity tools that are gaining attention for strengthening security across various environments. Pompelmi: Open-source secure file upload scanning for Node.js Software teams building services in JavaScript are adding more layers of defense to handle untrusted file uploads. An open-source project called Pompelmi aims to insert malware scanning and policy…

Microsoft adds domain libraries and Copilot integration to the quantum development kit

The Microsoft Quantum Development Kit (QDK) is an open-source toolkit that runs on laptops and in common development environments. It includes code, simulators, libraries, and workflows that work with Visual Studio Code and GitHub Copilot. Integration with these tools gives developers features for writing, testing, debugging, and submitting quantum code. The QDK supports multiple programming…

Coroot: Open-source observability and APM tool

Coroot is an open-source observability and application performance monitoring tool. The core software, published in Go and accompanied by companion repositories such as coroot-node-agent, focuses on collecting telemetry data across systems. It uses extended Berkeley Packet Filter (eBPF) technology to gather metrics and trace inter-service communications without manual instrumentation of application code. Coroot collects standard…

Global Threat Map: Open-source Real-time Situational Awareness Platform

Global Threat Map is an open-source project offering security teams a live view of reported cyber activity across the globe, pulling together open data feeds into a single interactive map. It visualizes indicators such as malware distribution, phishing activity, and attack traffic by geographic region. The post Global Threat Map: Open-source Real-time Situational Awareness Platform…

Six flaws found hiding in OpenClaw’s plumbing

Security researchers have uncovered six high-to-critical flaws affecting the open-source AI agent framework OpenClaw, popularly known as a “social media for AI agents.” The flaws were discovered by Endor Labs as its researchers ran the platform through an AI-driven static application security testing (SAST) engine designed to follow how data actually moves through the agentic…

Open source maintainers being targeted by AI agent as part of ‘reputation farming’

AI agents able to submit huge numbers of pull requests (PRs) to open-source project maintainers risk creating the conditions for future supply chain attacks targeting important software projects, developer security company Socket has argued. The warning comes after one of its developers, Nolan Lawson, last week received an email regarding the PouchDB JavaScript database he…

Researchers unearth 30-year-old vulnerability in libpng library

Developers have resolved a legacy flaw in the widely used libpng open-source library that existed since the software was released nearly 30 years ago. The heap buffer overflow in libpng would cause applications on unpatched systems to crash when presented with maliciously crafted PNG graphic images. In worse case scenarios, the CVE-2026-25646 vulnerability could be…

Brutus: Open-source credential testing tool for offensive security

Brutus is an open-source, multi-protocol credential testing tool written in pure Go. Designed to replace legacy tools that have long frustrated penetration testers with dependency headaches and integration gaps, Brutus ships as a single binary with zero external dependencies and native support for the JSON-based reconnaissance pipelines that define offensive security. Solving a real workflow…

Zen-AI-Pentest: Open-source AI-powered penetration testing framework

Zen-AI-Pentest provides an open-source framework for scanning and exercising systems using a combination of autonomous agents and standard security utilities. The project aims to let users run an orchestrated sequence of reconnaissance, vulnerability scanning, exploitation, and reporting using AI guidance and industry tools like Nmap and Metasploit. It is written to support command line, API,…

Product showcase: PCAPdroid analyzes Android app network activity

PCAPdroid is a free, open-source Android app that allows inspection of network traffic. Installation is straightforward and does not require creating an account. To begin capturing traffic, a VPN request must be accepted, which allows the app to monitor network activity. Once permission is granted, tapping the play button starts PCAPdroid, which then runs in…

OpenClaw integrates VirusTotal malware scanning as security firms flag enterprise risks

OpenClaw, the viral open-source AI agent that security firms warn is “insecure by default,” has integrated VirusTotal’s malware scanning into its ClawHub skills marketplace following weeks in which security researchers documented malicious extensions and widespread unauthorized deployments in enterprises. The integration automatically scans all published skills before making them available for download, according to the…

OpenClaw integrates VirusTotal malware scanning as security firms flag enterprise risks

OpenClaw, the viral open-source AI agent that security firms warn is “insecure by default,” has integrated VirusTotal’s malware scanning into its ClawHub skills marketplace following weeks in which security researchers documented malicious extensions and widespread unauthorized deployments in enterprises. The integration automatically scans all published skills before making them available for download, according to the…

Allama: Open-source AI security automation

Allama is an open-source security automation platform that lets teams build visual workflows for threat detection and response. It includes integrations with 80+ types of tools and services typical in security operations, including SIEM systems, endpoint detection and response products, identity providers, and ticketing systems. The project supports alerts from many sources. Once alerts enter…

Allama: Open-source AI security automation

Allama is an open-source security automation platform that lets teams build visual workflows for threat detection and response. It includes integrations with 80+ types of tools and services typical in security operations, including SIEM systems, endpoint detection and response products, identity providers, and ticketing systems. The project supports alerts from many sources. Once alerts enter…

OpenAI responds to Claude Cowork with its own platform to help build, deploy, and manage AI agents

Less than a week after Anthropic released 11 open-source plugins that enable Claude Cowork to execute a series of automated processes in areas ranging from customer support to IT operations, OpenAI responded Thursday with a similar platform it calls Frontier.   It said that its offering “gives agents the same skills people need to succeed…

OpenClaw and the Growing Security Risks of Agentic AI

OpenClaw, a fast-growing open-source AI agent, is drawing attention from security teams as its rapid adoption collides with emerging risks around autonomous AI behavior.  Designed to act as a personal assistant that can connect to large language models (LLMs), call external APIs, and execute tasks independently, OpenClaw represents a form of agentic AI designed to…

OpenClaw’s Rapid Rise Exposes Thousands of AI Agents to the Public Internet

In just days, a viral open-source AI assistant went from niche experiment to a widespread internet-facing risk.  OpenClaw, a self-hosted personal AI agent capable of executing actions on a user’s behalf, saw explosive adoption in late January 2026 — along with widespread public exposure that has raised concerns among security researchers. It “… has already…