CVE-2026-27457
MEDIUM
GHSA-wppc-7cq7-cgfv
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
3Description
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.
Analysis
Weblate versions prior to 5.16.1 fail to properly restrict API access to addon data, allowing authenticated users to enumerate and access all addons across every project and component in the system. An attacker with valid credentials can query the REST API endpoints to retrieve sensitive addon information that should be scoped to their assigned permissions. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review data exposure and access controls.
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External POC / Exploit Code
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