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

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Hottest cybersecurity open-source tools of the month: August 2026 2026-08-26 at 07:30 By Anamarija Pogorelec 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. SkillSpector: NVIDIA’s open-source security scanner for AI agent skills SkillSpector is an open-source scanner from […]

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HOL Guard: Open-source antivirus for AI agents

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HOL Guard: Open-source antivirus for AI agents 2026-08-25 at 08:30 By Anamarija Pogorelec HOL Guard is a free, open-source tool that sits between an AI assistant and the computer it runs on. When the assistant tries something risky, the tool pauses it and asks you first. It installs in about a minute, runs on your

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Hazmat: Open-source containment for AI agents

agentic AI, cybersecurity, Don't miss, GitHub, Hot stuff, News, open source, penetration testing, software /

Hazmat: Open-source containment for AI agents 2026-08-17 at 08:00 By Anamarija Pogorelec Hazmat is an open-source tool that runs AI coding agents inside a separate account on your own machine. It wraps the harnesses people use: Claude Code, Codex, OpenCode, Cursor Agent, and several more, plus any script you write yourself. An agent launched the

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Wireshark 4.6.8 patches 28 security bugs, nine in file parsers

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Wireshark 4.6.8 patches 28 security bugs, nine in file parsers 2026-08-13 at 06:53 By Anamarija Pogorelec Wireshark 4.6.8 fixes 28 security bugs in the protocol analyzer, and nine of them fire when someone opens a saved capture file. Those nine sit in file parsers, the code that reads a capture off disk before any dissection

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Locking your ssh-agent exposed local-only keys until OpenSSH 10.5

Linux, News, open source, OpenSSH, software /

Locking your ssh-agent exposed local-only keys until OpenSSH 10.5 2026-08-11 at 12:15 By Anamarija Pogorelec Lock your ssh-agent and it should sit there refusing to sign anything until you unlock it. In OpenSSH 10.4, locking it also switched off the check that tells the agent whether a request came from your own machine or arrived

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Chainloop: Open-source evidence store and policy engine for the software supply chain

Application Security, devsec, Don't miss, GitHub, News, open source, software, supply chain /

Chainloop: Open-source evidence store and policy engine for the software supply chain 2026-08-10 at 08:30 By Sinisa Markovic Chainloop is an open source evidence store for the software supply chain. A command line tool runs inside a GitHub Actions, GitLab, Jenkins, or Dagger pipeline, picks up what the build produced, uploads those files to content-addressable

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Qodana 2026.2 adds post-quantum crypto checks for JVM code

Application Security, code, JetBrains, News, software, update /

Qodana 2026.2 adds post-quantum crypto checks for JVM code 2026-08-03 at 14:21 By Anamarija Pogorelec Qodana 2026.2 shipped with new security inspections, published benchmark results, post-quantum cryptography checks, and coverage reporting that no longer has to be pointed at the reports. The security work sits in the .NET linter and runs by default. Qodana tracks

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SkillSpector: NVIDIA’s open-source security scanner for AI agent skills

agentic AI, Don't miss, GitHub, Hot stuff, LLMs, News, NVIDIA, open source, scanner, software /

SkillSpector: NVIDIA’s open-source security scanner for AI agent skills 2026-08-03 at 08:30 By Anamarija Pogorelec SkillSpector is an open-source scanner from NVIDIA that reads an agent skill and tells you whether to install it. Point it at a directory, a zip file, a single SKILL.md, or a Git URL, and it returns a list of

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CISA sets a new SBOM baseline

AI, CISA, cybersecurity, News, open source, SaaS, software /

CISA sets a new SBOM baseline 2026-07-30 at 15:23 By Anamarija Pogorelec The US Cybersecurity and Infrastructure Security Agency (CISA), together with its co-authoring partners, has released the 2026 Minimum Elements for a Software Bill of Materials (SBOM), replacing the 2021 guidance published by the National Telecommunications and Information Administration (NTIA). An SBOM is a

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Specter: Open-source NFC reader bug sweep for Flipper Zero

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Specter: Open-source NFC reader bug sweep for Flipper Zero 2026-07-29 at 08:00 By Anamarija Pogorelec Specter is a Flipper Zero app that finds powered NFC readers by listening for the radio field they give off. The readers it hunts work at 13.56 MHz. The Flipper’s own chip does the sensing The onboard ST25R3916 carries a

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PyPI hardens package security with new upload restrictions

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PyPI hardens package security with new upload restrictions 2026-07-23 at 12:31 By Anamarija Pogorelec The Python Package Index (PyPI) now rejects uploads of new files to releases older than 14 days to prevent attackers from poisoning long-stable releases if a project’s publishing tokens or release workflows are compromised. “This change will protect Python users and

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Snowpick: Open-source ServiceNow exposure scanner

AppOmni, Bishop Fox, cybersecurity, Don't miss, GitHub, News, open source, ServiceNow, software, Varonis /

Snowpick: Open-source ServiceNow exposure scanner 2026-07-22 at 08:30 By Mirko Zorz An employee opens a company service portal, searches the knowledge base, and drops a file onto a ticket. Someone who never signed in can send a request to that same portal and get records back. Bishop Fox ran that test across 166 ServiceNow instances

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Meet Dusseldorf, Microsoft’s open-source out-of-band security platform

Don't miss, GitHub, Microsoft, network, News, open source, software, traffic monitoring /

Meet Dusseldorf, Microsoft’s open-source out-of-band security platform 2026-07-20 at 09:00 By Anamarija Pogorelec Out-of-band vulnerabilities surface when an application quietly reaches out to an external system during an attack, and capturing that traffic calls for infrastructure that many researchers assemble on their own. A new open-source project from Microsoft supplies that infrastructure in a package

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VS Code agent host runs Copilot, Claude, and Codex in a dedicated process

GitHub, Microsoft, News, programming, software /

VS Code agent host runs Copilot, Claude, and Codex in a dedicated process 2026-07-16 at 10:45 By Anamarija Pogorelec Developers who lean on AI coding agents often keep several editor windows open at once, each tied to its own session. The 1.129 release of Visual Studio Code reworks that setup with a dedicated agent host.

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FreeRDP 3.29.0 security update resolves 22 advisories

News, open source, remote access, software /

FreeRDP 3.29.0 security update resolves 22 advisories 2026-07-15 at 11:42 By Anamarija Pogorelec FreeRDP is a free implementation of the Remote Desktop Protocol, released under the Apache license, and it runs on a large share of workstations and servers through the many tools built on it. The 3.29.0 version is a security, bugfix, and maintenance

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SingGuard-NSFA: Open-source guardrails for agentic AI

agentic AI, cybersecurity, Don't miss, GitHub, News, open source, software /

SingGuard-NSFA: Open-source guardrails for agentic AI 2026-07-15 at 08:30 By Anamarija Pogorelec SingGuard-NSFA is an open-source guardrail framework aimed at operational threats in agent workflows. Four models ship at 0.8B, 2B, 4B, and 9B parameters, all built on Qwen3.5 base backbones. Risk taxonomy The NSFA risk taxonomy organizes threats along the CIA triad of confidentiality,

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Chatto: Open-source team messenger with privacy at its core

Encryption, messaging, News, open source, Privacy, software /

Chatto: Open-source team messenger with privacy at its core 2026-07-14 at 07:30 By Anamarija Pogorelec Teams that want their group chats off commercial platforms have a growing menu of self-hosted options. Chatto joined that group when its developer released the code under an open-source license and posted binaries for anyone to run on their own

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Cynative: Open-source deep research agent

agentic AI, AWS, cybersecurity, Don't miss, GitHub, Hot stuff, LLMs, News, open source, software /

Cynative: Open-source deep research agent 2026-07-13 at 09:00 By Mirko Zorz Running a large language model against a live cloud account to hunt for security holes comes with an obvious hazard. An agent that holds real credentials and a mandate to poke around can delete a bucket, flip a permission, or leak a secret on

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The open source library holding up your stack might have one maintainer

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The open source library holding up your stack might have one maintainer 2026-07-10 at 10:00 By Sinisa Markovic Every serious software product runs on code that someone else wrote and released for free. A web service leans on a cryptography library, a data pipeline pulls in a parser, and a mobile app ships a handful

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20 open-source cybersecurity tools to keep your team ready for anything

agentic AI, AI, Application Security, containers, cybersecurity, Don't miss, Endpoint Security, Exabeam, firewall, GitHub, Hot stuff, LLMs, Microsoft, News, open source, OWASP, penetration testing, scanner, security telemetry, software, vulnerability assessment, Windows /

20 open-source cybersecurity tools to keep your team ready for anything 2026-07-08 at 08:30 By Anamarija Pogorelec AI is changing how security teams find vulnerabilities, analyze code, test applications, and protect infrastructure. Developers are building tools to secure AI systems themselves, from coding agents and memory protection to model exposure discovery. This roundup covers recent

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