{"id":"CVE-2026-27457","aliases":["EUVD-2026-8897","GHSA-wppc-7cq7-cgfv","PYSEC-2026-2310","openSUSE-SU-2026:10309-1"],"status":"published","title":"Weblate: Missing access control for the AddonViewSet API exposes all addon configurations","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.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00348,"percentile":0.28779,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200","CWE-862"],"published":"2026-02-26T19:45:06Z","modified":"2026-11-11T10:30:56Z","fixes":[{"ecosystem":"PyPI","package":"weblate","fixed_in":["5.16.1"],"sources":["ghsa","osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"weblate","fixed_in":["5.16.1-1.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"weblate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"weblate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.1"}]}],"versions":["1.9","2.0","2.1","2.10","2.10.1","2.11","2.12","2.13","2.13.1","2.14","2.14.1","2.15","2.16","2.17","2.17.1","2.18","2.19","2.19.1","2.2","2.20","2.3","2.4","2.5","2.6","2.7","2.8","2.9","3.0","3.0.1","3.1","3.1.1","3.10","3.10.1","3.10.2","3.10.3","3.11","3.11.1","3.11.2","3.11.3","3.2","3.2.1","3.2.2","3.3","3.4","3.5","3.5.1","3.6","3.6.1","3.7","3.7.1","3.8","3.9","3.9.1","4.0","4.0.1","4.0.2","4.0.3","4.0.4","4.1","4.1.1","4.10","4.10.1","4.11","4.11.1","4.11.2","4.12","4.12.1","4.12.2","4.13","4.13.1","4.14","4.14.1","4.14.2","4.15","4.15.1","4.15.2","4.16","4.16.1","4.16.2","4.16.3","4.16.4","4.17","4.18","4.18.1","4.18.2","4.2","4.2.1","4.2.2","4.3","4.3.1","4.3.2","4.4","4.4.1","4.4.2","4.5","4.5.1","4.5.2","4.5.3","4.6","4.6.1","4.6.2","4.7","4.7.1","4.7.2","4.8","4.8.1","4.9","4.9.1","5.0","5.0.1","5.0.2","5.1","5.1.1","5.10","5.10.1","5.10.2","5.10.3","5.10.4","5.11","5.11.1","5.11.3","5.11.4","5.12.1","5.12.2","5.13","5.13.1","5.13.2","5.13.3","5.14","5.14.1","5.14.2","5.14.3","5.15","5.15.1","5.15.2","5.16","5.2","5.2.1","5.3","5.3.1","5.4","5.4.1","5.4.2","5.4.3","5.5","5.5.2","5.5.3","5.5.4","5.5.5","5.6","5.6.1","5.6.2","5.7","5.7.1","5.7.2","5.8.1","5.8.2","5.8.3","5.8.4","5.9.1","5.9.2"]},{"source":"osv","ecosystem":"PyPI","package":"weblate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.1"}]}],"versions":["1.9","2.0","2.1","2.10","2.10.1","2.11","2.12","2.13","2.13.1","2.14","2.14.1","2.15","2.16","2.17","2.17.1","2.18","2.19","2.19.1","2.2","2.20","2.3","2.4","2.5","2.6","2.7","2.8","2.9","3.0","3.0.1","3.1","3.1.1","3.10","3.10.1","3.10.2","3.10.3","3.11","3.11.1","3.11.2","3.11.3","3.2","3.2.1","3.2.2","3.3","3.4","3.5","3.5.1","3.6","3.6.1","3.7","3.7.1","3.8","3.9","3.9.1","4.0","4.0.1","4.0.2","4.0.3","4.0.4","4.1","4.1.1","4.10","4.10.1","4.11","4.11.1","4.11.2","4.12","4.12.1","4.12.2","4.13","4.13.1","4.14","4.14.1","4.14.2","4.15","4.15.1","4.15.2","4.16","4.16.1","4.16.2","4.16.3","4.16.4","4.17","4.18","4.18.1","4.18.2","4.2","4.2.1","4.2.2","4.3","4.3.1","4.3.2","4.4","4.4.1","4.4.2","4.5","4.5.1","4.5.2","4.5.3","4.6","4.6.1","4.6.2","4.7","4.7.1","4.7.2","4.8","4.8.1","4.9","4.9.1","5.0","5.0.1","5.0.2","5.1","5.1.1","5.10","5.10.1","5.10.2","5.10.3","5.10.4","5.11","5.11.1","5.11.3","5.11.4","5.12.1","5.12.2","5.13","5.13.1","5.13.2","5.13.3","5.14","5.14.1","5.14.2","5.14.3","5.15","5.15.1","5.15.2","5.16","5.2","5.2.1","5.3","5.3.1","5.4","5.4.1","5.4.2","5.4.3","5.5","5.5.2","5.5.3","5.5.4","5.5.5","5.6","5.6.1","5.6.2","5.7","5.7.1","5.7.2","5.8.1","5.8.2","5.8.3","5.8.4","5.9.1","5.9.2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"weblate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.1-1.1"}]}]}],"products":[{"vendor":"weblate","product":"weblate"},{"vendor":"weblateorg","product":"weblate"}],"references":[{"url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-wppc-7cq7-cgfv","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory","web","fix"]},{"url":"https://github.com/WeblateOrg/weblate/pull/18107","tags":["x_refsource_MISC","Issue Tracking","Patch","fix","web"]},{"url":"https://github.com/WeblateOrg/weblate/pull/18164","tags":["x_refsource_MISC","Issue Tracking","Patch","fix","web"]},{"url":"https://github.com/WeblateOrg/weblate/commit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/WeblateOrg/weblate/commit/7802c9b121eb407c48d4adddd4f2458fb3efef0f","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.16.1","tags":["x_refsource_MISC","Product","Release Notes","web","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27457","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wppc-7cq7-cgfv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27457.json","tags":["advisory"]},{"url":"https://github.com/WeblateOrg/weblate","tags":["package"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-27457","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-27457","title":"Weblate: Missing access control for the AddonViewSet API exposes all addon configurations","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.","status":"published","published":"2026-02-26T21:56:03.22Z","modified":"2026-03-03T01:39:37.771Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862","CWE-200"],"updated_at":"2026-11-02T14:19:48.826324Z"}],"euvd":[{"id":"EUVD-2026-8897","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.","status":"published","published":"2026-02-26T21:56:03Z","modified":"2026-03-03T01:39:37Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T19:48:12.247854Z"}],"ghsa":[{"id":"GHSA-wppc-7cq7-cgfv","title":"Weblate: Missing access control for the AddonViewSet API exposes all addon configurations","description":"### Impact\n\nUsers were able to obtain add-on configuration via API.\n\n### Patches\n\n* https://github.com/WeblateOrg/weblate/pull/18107\n* https://github.com/WeblateOrg/weblate/pull/18164\n\n\n### References\n\nWeblate thanks @lighthousekeeper1212 for responsible disclosure.","status":"published","published":"2026-02-26T19:45:06Z","modified":"2026-02-27T21:59:16Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-862"],"updated_at":"2026-11-02T14:39:28.962954Z"}],"nvd":[{"id":"CVE-2026-27457","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.","status":"published","published":"2026-02-26T22:20:48.133Z","modified":"2026-06-17T10:27:11.127Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-200","CWE-862"],"updated_at":"2026-11-02T14:12:07.027269Z"}],"osv":[{"id":"CVE-2026-27457","title":"Weblate: Missing access control for the AddonViewSet API exposes all addon configurations","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.","status":"published","published":"2026-02-26T21:56:03.22Z","modified":"2026-11-11T10:30:56.132154339Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-862"],"updated_at":"2026-11-11T11:06:43.133992Z"},{"id":"GHSA-wppc-7cq7-cgfv","title":"Weblate: Missing access control for the AddonViewSet API exposes all addon configurations","description":"### Impact\n\nUsers were able to obtain add-on configuration via API.\n\n### Patches\n\n* https://github.com/WeblateOrg/weblate/pull/18107\n* https://github.com/WeblateOrg/weblate/pull/18164\n\n\n### References\n\nWeblate thanks @lighthousekeeper1212 for responsible disclosure.","status":"published","published":"2026-02-26T19:45:06Z","modified":"2026-07-13T07:26:38.986681277Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-862"],"updated_at":"2026-11-02T15:46:58.767335Z"},{"id":"PYSEC-2026-2310","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.","status":"published","published":"2026-02-26T22:20:48.133Z","modified":"2026-07-13T07:15:47.892235811Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:55.537808Z"},{"id":"openSUSE-SU-2026:10309-1","title":"weblate-5.16.1-1.1 on GA media","description":"These are all security issues fixed in the weblate-5.16.1-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-03-07T00:00:00Z","modified":"2026-03-08T15:45:07.379411Z","updated_at":"2026-11-02T16:58:38.101535Z"}]}}