Resolves#33147
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
## Testing
- [x] Added/updated automated tests
- [x] Where appropriate, [automated tests simulate multiple hosts and
test for host
isolation](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/reference/patterns-backend.md#unit-testing)
(updates to one hosts's records do not affect another)
- [x] QA'd all new/changed functionality manually
## Database migrations
- [x] Checked table schema to confirm autoupdate
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- Bug Fixes
- Resolved MySQL performance regressions from 4.73.0/4.73.1 affecting OS
versions and software titles views, improving load times and reducing
timeouts.
- Refactor
- Optimized OS vulnerabilities fetching by batching multiple OS versions
in a single request.
- Added a supporting database index to speed kernel-related
vulnerability queries.
- Tests
- Added comprehensive tests for multi-OS vulnerability retrieval, CVSS
enrichment, team-scoped data, and service endpoint behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
