In short
- CVE-2026-27457 is a MEDIUM (CVSS 4.3) vulnerability affecting weblate, weblate (weblate).
- Chance of exploitation in the next 30 days (EPSS): 0.35%, higher than 28.4% of all vulnerabilities.
- Fix: update to 5.16.1 or later.
| Package | Affected versions | Patched versions |
|---|
| weblate PyPI | < 5.16.1
| 5.16.1
|
| weblate | < 5.16.1
| 5.16.1
|
Description
Impact
Users were able to obtain add-on configuration via API.
Patches
References
Weblate thanks @lighthousekeeper1212 for responsible disclosure.
NVD description
Weblate is a web based localization tool. Prior to version 5.16.1, the REST API's `AddonViewSet` (`weblate/api/views.py`, line 2831) uses `queryset = Addon.objects.all()` without overriding `get_queryset()` to scope results by user permissions. This allows any authenticated user (or anonymous users if `REQUIRE_LOGIN` is not set) to list and retrieve ALL addons across all projects and components via `GET /api/addons/` and `GET /api/addons/{id}/`. Version 5.16.1 fixes the issue.
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