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.
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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. [...]
A critical security vulnerability in Marimo, an open-source Python notebook for data science and analysis, has been exploited within 10 hours of public disclosure, according to findings from Sysdig
Google on Thursday released security updates for its Chrome web browser to address 21 vulnerabilities, including a zero-day flaw that it said has been exploited in the wild
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
Adobe has warned of a critical security flaw in its Commerce and Magento Open Source platforms that, if successfully exploited, could allow attackers to take control of customer accounts
Adobe is warning of a critical vulnerability (CVE-2025-54236) in its Commerce and Magento Open Source platforms that researchers call SessionReaper and describe as one of " the most severe" flaws in the history of the product. [...]
Hackers are actively exploiting CVE-2025-49113, a critical vulnerability in the widely used Roundcube open-source webmail application that allows remote execution. [...]
Meta has warned that a security vulnerability impacting the FreeType open-source font rendering library may have been exploited in the wild
Jenkins, a popular open-source automation server, was discovered to be affected by a file read vulnerability, CVE-2024-23897.
The Kinsing malware operator is actively exploiting the CVE-2023-46604 critical vulnerability in the Apache ActiveMQ open-source message broker to compromise Linux systems. [...]
A pre-authenticated remote code execution vulnerability has been disclosed in dotCMS, an open-source content management system written in Java and "used by over 10,000 clients in over 70 countries around the globe, from Fortune 500 brands and mid-sized businesses." The critical flaw, tracked as CVE-2022-26352, stems from a directory traversal attack when performing file uploads, enabling an
Offensive security researchers have created exploit code for CVE-2022-24086, the critical vulnerability affecting Adobe Commerce and Magento Open Source that Adobe that patched in an out-of-band update last Sunday. [...]
Adobe rolled out emergency updates for Adobe Commerce and Magento Open Source to fix a critical vulnerability tracked as CVE-2022-24086 that's being exploited in the wild. [...]