GitHub Security Lab | Securing open source software, together.

Our Mission

Enhance security by fostering global collaboration.

Contributions from maintainers, developers, and security researchers around the world push us forward, making the open source software a better place.

Security Research

We do the hard work, you can use it.

Dive into security research on open-source projects to explore new and emerging threats, and learn how to mitigate them so that you can make your own software more secure.

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1211

vulnerabilities found

by Security Lab researchers

905 CVEs credited

Latest vulnerabilities disclosed

Stored Cross-Site Scripting (XSS) via MIME Type Spoofing in Docmost - CVE-2026-33193

GHSL-2026-052 • CVE-2026-33193 • published 2026/04/24 00:00:00 ago • Man Yue Mo
Unauthorized Data Exposure via REST API Link Expansion in Frappe - CVE-2026-39351

GHSL-2026-012 • CVE-2026-39351 • published 2026/04/24 00:00:00 ago • Man Yue Mo
Unauthorized exfiltration of decrypted attachments in Signal through Intent redirection

GHSL-2026-102 • published 2026/04/03 00:00:00 ago • Jaroslav Lobačevski
Stored cross-site scripting (XSS) in NocoDB leading to potential account takeover - CVE-2026-28397

GHSL-2026-031 • CVE-2026-28397 • published 2026/04/03 00:00:00 ago • Peter Stöckli
Stored cross-site scripting (XSS) in NocoDB leading to potential unauthorized script execution - CVE-2026-28401

GHSL-2026-030 • CVE-2026-28401 • published 2026/04/03 00:00:00 ago • Peter Stöckli

CodeQL Wall of Fame

Join us in our mission to improve open source security for all

Have you used CodeQL’s variant analysis to find vulnerabilities on open source projects? Give your work the visibility it deserves by submitting your finding for the CodeQL Wall of Fame.

26,000+

security advisories

curated by Security Lab researchers

10,000+ CVEs assigned for OS maintainers

GitHub Advisory Database

While CVEs identify vulnerabilities, they don’t tell the whole story. Entries in the GitHub Advisory database expand beyond identification to include additional context and details to support automated security tooling – sourced from a global community of security experts and curated by the Security Lab – to help you understand vulnerabilities, assess risk, and fix with confidence and efficiency.

Explore the Advisory Database

Resources

Contributions from maintainers, developers, and security researchers around the world push us forward, making the open source software a better place.

Open Source Community

Learn about secure coding practices, get hands-on with AppSec training, and connect with experts during our office hours – free for open source developers, maintainers, and security researchers.

GitHub Security Lab for the Enterprise

At the GitHub Security Lab, our security experts, through community collaboration, strengthen open source security which is crucial for enterprises. We channel the community’s contributions into proven CodeQL queries and timely security advisories, and offer enterprises actionable insights that help secure your supply chain and accelerate the software development lifecycle.

Team

About the GitHub Security Lab.

At the GitHub Security Lab, we cultivate a collaborative community of developers and security experts who work together to bolster the security of open source software.

Meet the team

Learn more on GitHub Security Lab

Through research, education, and maintenance of the GitHub Advisory Database, we empower the community.

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