CVE-2026-27457
Weblate: Missing access control for the AddonViewSet API exposes all addon configurations
- State
- Published
- Severity
- 4.3 Medium
- Published
- Feb 26, 2026
- Updated
- Mar 3, 2026
- Reserved
- Feb 19, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
weblateWeblateOrg |
|
References
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-wppc-7cq7-cgfv
- https://github.com/WeblateOrg/weblate/pull/18107
- https://github.com/WeblateOrg/weblate/pull/18164
- https://github.com/WeblateOrg/weblate/commit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9
- https://github.com/WeblateOrg/weblate/commit/7802c9b121eb407c48d4adddd4f2458fb3efef0f
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.16.1
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