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OSV Record With Schema Violations — Intentionally Invalid

An intentionally invalid OSV record: the JSON parses, but the required id is missing, modified is not an RFC 3339 timestamp, the SEMVER range has a fixed event with no introduced event, and severity.score is a number where the schema demands a CVSS vector string. Advisory identifiers use the invented NOVUS-SAMPLE namespace with SAMPLE-CVE aliases; no identifier here refers to a published CVE, GHSA or OSV record, and no package named exists.

Preview — first 50 linesjson
{
  "schema_version": "1.6.0",
  "modified": "not-a-timestamp",
  "published": "2026-01-05T00:00:00Z",
  "aliases": [
    "SAMPLE-CVE-2026-0002"
  ],
  "summary": "SAMPLE advisory: fabricated unsafe-deserialisation issue in a fictional cache library.",
  "details": "SAMPLE advisory: fabricated unsafe-deserialisation issue in a fictional cache library. This record exists only as a test fixture; the package, the advisory and the identifier are all invented.",
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "example-cache",
        "purl": "pkg:npm/example-cache@0.9.2"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "fixed": "0.9.5"
            }
          ]
        }
      ],
      "versions": [
        "0.9.2"
      ],
      "database_specific": {
        "source": "NOVUS-SAMPLE",
        "cwe": "CWE-502",
        "vulnerable_range": ">=0.9.0 <0.9.5"
      }
    }
  ],
  "severity": [
    {
      "type": "CVSS_V3",
      "score": 9.3
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://advisories.orchard.example/NOVUS-SAMPLE-2026-0002"
    },
    {
      "type": "FIX",
      "url": "https://git.orchard.example/cache/0.9.5"
59 lines total — download for the full file.

Specifications

Seed
51200
Sample Only
true
Format
OSV
Violations
4
Intentionally Invalid
true
Well Formed Json
true
Line Endings
LF

Testing contract

Expected to fail
Scenario
Validate an advisory record against the OSV schema rather than merely parsing it.
Expected result
Validator reports four distinct violations — missing id, bad timestamp, range without an introduced event, and a numeric severity score — instead of accepting the record because it is well-formed JSON.

What is a .json file?

JSON (JavaScript Object Notation) is a lightweight, text-based data-interchange format representing objects, arrays, strings, numbers, booleans, and null. It is language-independent, human-readable, and the dominant format for web APIs and configuration. It requires a single well-formed root value.

How to use this file

Use an example JSON file to test parsers and serializers, schema validation, Unicode and number-precision handling, and API request or response processing.

How to use this file for testing

“OSV Record With Schema Violations — Intentionally Invalid” is a deterministic Novus Examples fixture for Schema validation, Error handling, JSON parsing. JSON Schema documents describing a data shape — for testing validators and schema-aware tooling.

Documented properties for this file: seed 51200 · LF · OSV. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.

Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.

SBOM, lockfile, provenance, and advisory fixtures describe the same fabricated component tree across formats, so a converter or scanner can be diffed against a known answer. Every package name, version, hash, and advisory ID is invented — never treat a finding here as real.

Code examples

import json

with open("osv-record-schema-violations.json") as f:
    data = json.load(f)
print(type(data), len(data))

Generated by generation/supply_chain.py. Free for any use, no attribution required — license.