{"id":"CVE-2026-55228","aliases":["EUVD-2026-66713","GHSA-2q2q-jr9g-v9rf","PYSEC-2026-3942"],"status":"published","title":"Weblate:: WebIDOR in GroupViewSet allows authenticated project manager to gain unauthorized read access to any private project","description":"Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, the REST API did not properly enforce the scope of project- and workspace-scoped teams, allowing a user to submit invalid team configurations through the API. By assigning projects to a team via these unvalidated requests, a user could grant access to projects they were not authorized to see or manage. This could expose private projects and permit translation, repository, and project-management operations outside the user's intended permission scope. This issue is fixed in version 2026.7.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00448,"percentile":0.39386,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-639"],"published":"2026-08-26T20:14:02Z","modified":"2026-10-28T02:30:43Z","fixes":[{"ecosystem":"PyPI","package":"weblate","fixed_in":["2026.7"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"weblate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.7"}]}]},{"source":"osv","ecosystem":"PyPI","package":"weblate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.7"}]}],"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","2026.5","2026.6","2026.6.1","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","5.16.1","5.16.2","5.17","5.17.1","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":"2026.7"}]}],"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","2026.5","2026.6","2026.6.1","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","5.16.1","5.16.2","5.17","5.17.1","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"]}],"products":[{"vendor":"weblateorg","product":"weblate"}],"references":[{"url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-2q2q-jr9g-v9rf","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/WeblateOrg/weblate/commit/19babc99b05f2cc299b5090f90f79d8181f25d79","tags":["x_refsource_MISC","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55228","tags":["advisory"]},{"url":"https://github.com/WeblateOrg/weblate/pull/19970","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2q2q-jr9g-v9rf","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55228.json","tags":["advisory"]},{"url":"https://github.com/WeblateOrg/weblate","tags":["package"]},{"url":"https://pypi.org/project/weblate","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-55228","title":"Weblate:: WebIDOR in GroupViewSet allows authenticated project manager to gain unauthorized read access to any private project","description":"Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, the REST API did not properly enforce the scope of project- and workspace-scoped teams, allowing a user to submit invalid team configurations through the API. By assigning projects to a team via these unvalidated requests, a user could grant access to projects they were not authorized to see or manage. This could expose private projects and permit translation, repository, and project-management operations outside the user's intended permission scope. This issue is fixed in version 2026.7.","status":"published","published":"2026-08-26T20:14:02.713Z","modified":"2026-08-27T15:20:40.892Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:20:11.925815Z"}],"euvd":[{"id":"EUVD-2026-66713","description":"Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, the REST API did not properly enforce the scope of project- and workspace-scoped teams, allowing a user to submit invalid team configurations through the API. By assigning projects to a team via these unvalidated requests, a user could grant access to projects they were not authorized to see or manage. This could expose private projects and permit translation, repository, and project-management operations outside the user's intended permission scope. This issue is fixed in version 2026.7.","status":"published","published":"2026-08-26T20:14:02Z","modified":"2026-08-27T15:20:40Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:01:27.663452Z"}],"ghsa":[{"id":"GHSA-2q2q-jr9g-v9rf","title":"Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project","description":"### Impact\nThe API did not properly handle project- and workspace-scoped teams and allowed setting invalid configurations, including granting access to projects the user has no access to.\n\n### Patches\n* https://github.com/WeblateOrg/weblate/pull/19970\n\n\n### References\n\nParts of this issue were independently reported by four reporters:\n * @H3xV0rT3x via GitHub\n * [imhego](https://hackerone.com/imhego) via HackerOne\n * [v01demort](https://hackerone.com/v01demort) via HackerOne\n * [b4nder](https://hackerone.com/b4nder) via HackerOne","status":"published","published":"2026-08-28T18:47:29Z","modified":"2026-08-28T18:47:30Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:41:08.084849Z"}],"nvd":[{"id":"CVE-2026-55228","description":"Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, the REST API did not properly enforce the scope of project- and workspace-scoped teams, allowing a user to submit invalid team configurations through the API. By assigning projects to a team via these unvalidated requests, a user could grant access to projects they were not authorized to see or manage. This could expose private projects and permit translation, repository, and project-management operations outside the user's intended permission scope. This issue is fixed in version 2026.7.","status":"published","published":"2026-08-26T21:16:38.737Z","modified":"2026-09-09T21:09:13.08Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:12:41.66469Z"}],"osv":[{"id":"CVE-2026-55228","title":"Weblate:: WebIDOR in GroupViewSet allows authenticated project manager to gain unauthorized read access to any private project","description":"Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, the REST API did not properly enforce the scope of project- and workspace-scoped teams, allowing a user to submit invalid team configurations through the API. By assigning projects to a team via these unvalidated requests, a user could grant access to projects they were not authorized to see or manage. This could expose private projects and permit translation, repository, and project-management operations outside the user's intended permission scope. This issue is fixed in version 2026.7.","status":"published","published":"2026-08-26T20:14:02.713Z","modified":"2026-10-28T02:30:43.787374074Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:45:11.22012Z"},{"id":"GHSA-2q2q-jr9g-v9rf","title":"Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project","description":"### Impact\nThe API did not properly handle project- and workspace-scoped teams and allowed setting invalid configurations, including granting access to projects the user has no access to.\n\n### Patches\n* https://github.com/WeblateOrg/weblate/pull/19970\n\n\n### References\n\nParts of this issue were independently reported by four reporters:\n * @H3xV0rT3x via GitHub\n * [imhego](https://hackerone.com/imhego) via HackerOne\n * [v01demort](https://hackerone.com/v01demort) via HackerOne\n * [b4nder](https://hackerone.com/b4nder) via HackerOne","status":"published","published":"2026-08-28T18:47:29Z","modified":"2026-09-10T12:26:08.09687537Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:46:34.700741Z"},{"id":"PYSEC-2026-3942","title":"Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project","description":"### Impact\nThe API did not properly handle project- and workspace-scoped teams and allowed setting invalid configurations, including granting access to projects the user has no access to.\n\n### Patches\n* https://github.com/WeblateOrg/weblate/pull/19970\n\n\n### References\n\nParts of this issue were independently reported by four reporters:\n * @H3xV0rT3x via GitHub\n * [imhego](https://hackerone.com/imhego) via HackerOne\n * [v01demort](https://hackerone.com/v01demort) via HackerOne\n * [b4nder](https://hackerone.com/b4nder) via HackerOne","status":"published","published":"2026-09-10T09:44:58.607082Z","modified":"2026-09-10T12:15:14.167450674Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:52:57.255153Z"}]}}