{"id":"CVE-2026-27457","aliases":["GHSA-wppc-7cq7-cgfv","PYSEC-2026-2310"],"url":"https://o3.security/vulnerability/CVE-2026-27457","summary":"Weblate: Missing access control for the AddonViewSet API exposes all addon configurations","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.","published":"2026-02-26T21:56:03.220Z","modified":"2026-08-12T03:51:43.307688783Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"weblate","fixedVersion":"5.16.1"}],"fix":{"url":"https://github.com/WeblateOrg/weblate/commit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9","label":"WeblateOrg/weblate@3f58f9a"},"references":[{"type":"WEB","url":"https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.16.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27457.json"},{"type":"ADVISORY","url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-wppc-7cq7-cgfv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27457"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/commit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/commit/7802c9b121eb407c48d4adddd4f2458fb3efef0f"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/pull/18107"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/pull/18164"},{"type":"PACKAGE","url":"https://github.com/WeblateOrg/weblate"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:43.307688783Z"}}