📦 Open Source

869k Vulnerability Records from 15 OSS Databases Collapse to Just 608k—Here's the Real Overlap

Imagine firing up your OSS project's vuln scanner, only to wonder: is it catching everything? One dev's entity-resolution magic on 15 databases uncovers the chaotic truth.

theAIcatchup Apr 10, 2026 3 min read
Overlapping circles diagram of 15 OSS vulnerability databases merging into canonical clusters

⚡ Key Takeaways

  • 869k records from 15 OSS databases merge into 608k canonical vulns, with OSV/GHSA dominating. 𝕏
  • GitHub-reviewed advisories cover only 9.1%—the rest is mostly automated NVD mirrors. 𝕏
  • Build your own pipeline with union-find for multi-source scanning; OSS data's cross-links make it easy. 𝕏
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#GHSA #OSS vulnerabilities #OSS vulnerability databases #OSV #dependency scanning #entity-resolution #vuln databases #vulnerability databases

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Originally reported by dev.to

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