client: only fetch necessary packages when cache missing

When a httpSource is used without a Cache implementation, only fetch
packages which are represented in the index. Previously if there
wasn't a Cache implementation every pacakge was enumerated, ignoring
the contents of the retrieved index.

Change-Id: I8e8e0ce412b3ded188afd6bb109d96efb7e7f27c
Trust: Roland Shoemaker <>
Trust: Zvonimir Pavlinovic <>
Run-TryBot: Roland Shoemaker <>
TryBot-Result: Go Bot <>
Reviewed-by: Zvonimir Pavlinovic <>
2 files changed
tree: cc876e6ac10b383851f6aae2656e9697a79b7f23
  7. client/
  8. cmd/
  11. go.mod
  12. go.sum
  14. osv/
  15. report/
  16. reports/
  17. template
  18. triaged-cve-list

The Go Vulnerability Database

This repository is a prototype of the Go Vulnerability Database. Read the Draft Design.

Neither the code, nor the data, nor the existence of this repository is to be considered stable until an approved proposal.

Important: vulnerability entries in this repository are represented in an internal, unstable format that can and will change without notice.

Consuming database entries

Database clients must not rely on the contents of this repository. Instead, they can access the tree of JSON entries rooted at

An index.json file maps package names to last modified timestamps. For each package name, a NAME.json file contains a list of vulnerability entries.

Note that this path and format are provisional and likely to change until an approved proposal.


Some of these packages can probably be coalesced, but for now are easier to work on in a more segmented fashion.

  • report provides a package for parsing and linting TOML reports
  • osv provides a package for generating OSV-style JSON vulnerability entries from a report.Report
  • client contains a client for accessing HTTP/fs based vulnerability databases, as well as a minimal caching implementation
  • cmd/gendb provides a tool for converting TOML reports into JSON database
  • cmd/genhtml provides a tool for converting TOML reports into a HTML website
  • cmd/linter provides a tool for linting individual reports
  • cmd/report2cve provides a tool for converting TOML reports into JSON CVEs


Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Database entries available at are distributed under the terms of the CC-BY 4.0 license.