CVE-2026-27457 | THREATINT

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.

PUBLISHED Reserved 2026-02-19 | Published 2026-02-26 | Updated 2026-02-26 | Assigner GitHub_M

MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Problem types

CWE-862: Missing Authorization

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

< 5.16.1

affected

References

github.com/...eblate/security/advisories/GHSA-wppc-7cq7-cgfv

github.com/WeblateOrg/weblate/pull/18107

github.com/WeblateOrg/weblate/pull/18164

github.com/...ommit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9

github.com/...ommit/7802c9b121eb407c48d4adddd4f2458fb3efef0f

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

cve.org (CVE-2026-27457)

nvd.nist.gov (CVE-2026-27457)

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