BOLT Security Engagement Complete!

The Open Source Technology Improvement Fund is proud to share the results of our security work on the BOLT binary scanner for LLVM.  LLVM is an open source compiler for translating human-readable source code for machine-readable hardware. In 2024, Arm engineer Kristof Beyls developed a static binary analyzer on BOLT,…

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LibVLC Audit Complete!

The Open Source Technology Improvement Fund is proud to share the results of our security audit of LibVLC. LibVLC is the open source core engine and foundation of VLC media player. With auditing by Trail of Bits and funding provided by the Sovereign Tech Agency, LibVLC received scoped security work,…

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Requests, CacheControl, and urllib3 Audits Complete!

The Open Source Technology Improvement Fund is proud to share the results of our security audit of Requests, CacheControl, and urllib3. Requests is a widely used, elegant HTTP library for Python, designed to make HTTP requests simple and human-friendly, CacheControl is a port of the caching algorithms from httplib2 for…

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zlib Audit Complete!

The Open Source Technology Improvement Fund is proud to share the results of our security audit of zlib. Zlib is an open source lossless data-compression library for use on virtually any computer hardware and operating system. Thanks to the efforts of 7ASecurity and the Sovereign Tech Resilience Program, this project underwent…

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2025 Annual Report

2025 marked the 10th year of OSTIF. This year, we published 24 audits, worked on behalf of almost 50 projects, and partnered with 10 different funding bodies to create security outcomes for open source projects. As a result, 231 findings with security impact have been reported and over 98% of…

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