CVE-2026-27457

MEDIUM4.3

Weblate: Missing access control for the AddonViewSet API exposes all addon configurations

Published Feb 26, 2026

Modified 2 days ago

Details

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.

References

WEB

https://github.com/WeblateOrg/weblate/commit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9

WEB

https://github.com/WeblateOrg/weblate/commit/7802c9b121eb407c48d4adddd4f2458fb3efef0f

WEB

https://github.com/WeblateOrg/weblate/pull/18107

WEB

https://github.com/WeblateOrg/weblate/pull/18164

WEB

https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.16.1

WEB