Open-source software enables code review and reuse, but known vulnerabilities and unmaintained dependencies can create cybersecurity risks.
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Background for this topic.
Open source is software whose source code is available under a license that permits use, inspection, modification, and redistribution. It may be developed by a community, an organization, or a small group of maintainers; “open” does not guarantee that the code is actively reviewed, supported, or secure.
For security teams, the main concerns are vulnerabilities in dependencies and the software supply chain: a maintainer account, release process, or package can be compromised, while an unmaintained component may retain known flaws. Public code can enable review and faster fixes, but visibility alone is not a control. Maintain an inventory or SBOM of open-source components, pin and verify versions or signatures where possible, monitor vulnerability advisories, and apply updates through a controlled process.
Weekly headline count for the current query.
A Russian-speaking threat actor known as "bandcampro" used Google's open-source Gemini CLI AI tool as a hacking agent and to operate a small-scale botnet. [...]
The Miasma credential-stealing attack framework, which has recently targeted open-source ecosystems through supply-chain attacks, was briefly open-sourced on GitHub. [...]
Microsoft has created an open-source fork of Windows Terminal called "Intelligent Terminal," and it allows you to use AI directly inside Terminal without interfering with the regular session. [...]
An 18-year-old flaw in the NGINX open-source web server, discovered using an autonomous scanning system, can be exploited for denial of service and, under certain conditions, remote code execution. [...]
A critical vulnerability affecting certain configurations of the Exim open-source mail transfer agent could be exploited by an unauthenticated remote attacker to execute arbitrary code. [...]
Hundreds of packages across npm and PyPI have been compromised in a new Shai-Hulud supply-chain campaign delivering credential-stealing malware targeting developers. [...]
Researchers at Google Threat Intelligence Group (GTIG) say that a zero-day exploit targeting a popular open-source web administration tool was likely generated using AI. [...]
Critical vulnerabilities can exist in open source software your scanners don't check. HeroDevs reveals how EOL software creates blind spots in CVE feeds and SCA tools, and how you can receive a free end-of-life scan for your projects. [...]
Critical vulnerabilities can exist in open source software your scanners don't check. HeroDevs reveals how EOL software creates blind spots in CVE feeds and SCA tools, and how you can receive a free end-of-life scan for your projects. [...]
Hackers are exploiting two authentication bypass vulnerabilities in the Qinglong open-source task scheduling tool to deploy cryptominers on developers' servers. [...]
Hackers are targeting sensitive information stored in the LiteLLM open-source large-language model (LLM) gateway by exploiting a critical vulnerability tracked as CVE-2026-42208. [...]
Microsoft has suspended developer accounts used to maintain multiple high-profile open-source projects without proper notification and no way to quickly reinstate them, effectively blocking them from publishing new software builds and security patches for Windows users. [...]
Hackers are exploiting a maximum-severity vulnerability, tracked as CVE-2025-59528, in the open-source platform Flowise for building custom LLM apps and agentic systems to execute arbitrary code. [...]
A new info-stealing malware named Infinity Stealer is targeting macOS systems with a Python payload packaged as an executable using the open-source Nuitka compiler. [...]
Attacks leveraging the 'PolyShell' vulnerability in version 2 of Magento Open Source and Adobe Commerce installations are underway, targeting more than half of all vulnerable stores. [...]
A newly disclosed vulnerability dubbed 'PolyShell' affects all Magento Open Source and Adobe Commerce stable version 2 installations, allowing unauthenticated code execution and account takeover. [...]
The LeakNet ransomware gang is now using the ClickFix technique for initial access into corporate environments and deploys a malware loader based on the open-source Deno runtime for JavaScript and TypeScript. [...]
A new open-source tool called Betterleaks can scan directories, files, and git repositories and identify valid secrets using default or customized rules. [...]
The Russian state-sponsored APT28 threat group is using a custom variant of the open-source Covenant post-exploitation framework for long-term espionage operations. [...]
Researchers warn that a newly identified open-source AI security testing platform called CyberStrikeAI was used by the same threat actor behind a recent campaign that breached hundreds of Fortinet FortiGate firewalls. [...]