{"id":"CVE-2026-123820","aliases":["EUVD-2026-120458","GHSA-c2xx-cjmh-9q8f"],"status":"published","title":"Wagtail: Improper restriction handling on descendant collections in Documents and Images API","description":"Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00297,"percentile":0.22686,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-280"],"published":"2026-08-20T18:45:14Z","modified":"2026-11-10T10:46:12Z","fixes":[{"ecosystem":"PyPI","package":"wagtail","fixed_in":["7.0.9","7.3.4","7.4.3","8.0rc2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.9"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1"},{"fixed":"7.3.4"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.4"},{"fixed":"7.4.3"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0rc1"},{"last_affected":"8.0rc1"},{"fixed":"8.0rc2"}]}],"versions":["8.0rc1"]},{"source":"osv","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.9"}]}],"versions":["0.1","0.2","0.3","0.3.1","0.4","0.4.1","0.5","0.6","0.7","0.8","0.8.1","0.8.10","0.8.2","0.8.3","0.8.4","0.8.5","0.8.6","0.8.7","0.8.8","0.8.9","1.0","1.0b1","1.0b2","1.0rc1","1.0rc2","1.1","1.10","1.10.1","1.10rc1","1.11","1.11.1","1.11rc1","1.12","1.12.1","1.12.2","1.12.3","1.12.4","1.12.5","1.12.6","1.12rc1","1.13","1.13.1","1.13.2","1.13.3","1.13.4","1.13rc1","1.1rc1","1.2","1.2rc1","1.3","1.3.1","1.3rc1","1.4","1.4.1","1.4.2","1.4.3","1.4.4","1.4.5","1.4.6","1.4rc1","1.5","1.5.1","1.5.2","1.5.3","1.5rc1","1.6","1.6.1","1.6.2","1.6.3","1.6rc1","1.7","1.7rc1","1.8","1.8.1","1.8.2","1.8rc1","1.9","1.9.1","1.9rc1","2.0","2.0.1","2.0.2","2.0b1","2.0rc1","2.1","2.1.1","2.1.2","2.1.3","2.10","2.10.1","2.10.2","2.10rc1","2.10rc2","2.11","2.11.1","2.11.2","2.11.3","2.11.4","2.11.5","2.11.6","2.11.7","2.11.8","2.11.9","2.11rc1","2.12","2.12.1","2.12.2","2.12.3","2.12.4","2.12.5","2.12.6","2.12rc1","2.13","2.13.1","2.13.2","2.13.3","2.13.4","2.13.5","2.13rc1","2.13rc2","2.13rc3","2.14","2.14.1","2.14.2","2.14rc1","2.15","2.15.1","2.15.2","2.15.3","2.15.4","2.15.5","2.15.6","2.15rc1","2.15rc2","2.16","2.16.1","2.16.2","2.16.3","2.16rc1","2.16rc2","2.1rc1","2.1rc2","2.2","2.2.1","2.2.2","2.2rc1","2.2rc2","2.3","2.3rc1","2.3rc2","2.4","2.4rc1","2.5","2.5.1","2.5.2","2.5rc1","2.6","2.6.1","2.6.2","2.6.3","2.6rc1","2.7","2.7.1","2.7.2","2.7.3","2.7.4","2.7rc1","2.7rc2","2.8","2.8.1","2.8.2","2.8rc1","2.9","2.9.1","2.9.2","2.9.3","2.9rc1","3.0","3.0.1","3.0.2","3.0.3","3.0rc1","3.0rc2","3.0rc3","4.0","4.0.1","4.0.2","4.0.3","4.0.4","4.0rc1","4.0rc2","4.1","4.1.1","4.1.2","4.1.3","4.1.4","4.1.5","4.1.6","4.1.7","4.1.8","4.1.9","4.1rc1","4.2","4.2.1","4.2.2","4.2.3","4.2.4","4.2rc1","5.0","5.0.1","5.0.2","5.0.3","5.0.4","5.0.5","5.0rc1","5.1","5.1.1","5.1.2","5.1.3","5.1rc1","5.2","5.2.1","5.2.2","5.2.3","5.2.4","5.2.5","5.2.6","5.2.7","5.2.8","5.2rc1","6.0","6.0.1","6.0.2","6.0.3","6.0.4","6.0.5","6.0.6","6.0rc1","6.1","6.1.1","6.1.2","6.1.3","6.1rc1","6.1rc2","6.2","6.2.1","6.2.2","6.2.3","6.2.4","6.2rc1","6.3","6.3.1","6.3.2","6.3.3","6.3.4","6.3.5","6.3.6","6.3.7","6.3.8","6.3rc1","6.3rc2","6.4","6.4.1","6.4.2","6.4rc1","7.0","7.0.1","7.0.2","7.0.3","7.0.4","7.0.5","7.0.6","7.0.7","7.0.8","7.0rc1"]},{"source":"osv","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1"},{"fixed":"7.3.4"}]}],"versions":["7.1","7.1.1","7.1.2","7.1.3","7.2","7.2.1","7.2.2","7.2.3","7.2rc1","7.3","7.3.1","7.3.2","7.3.3","7.3rc1"]},{"source":"osv","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.4"},{"fixed":"7.4.3"}]}],"versions":["7.4","7.4.1","7.4.2"]},{"source":"osv","ecosystem":"PyPI","package":"wagtail","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0rc1"},{"fixed":"8.0rc2"}]}],"versions":["8.0rc1"]}],"products":[{"vendor":"wagtail","product":"wagtail"}],"references":[{"url":"https://github.com/wagtail/wagtail/security/advisories/GHSA-c2xx-cjmh-9q8f","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/wagtail/wagtail/commit/320c37ed4624702d3864ce2364ce8536b2ce5115","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/wagtail/wagtail/commit/9a69e0ad153c515ddd86ddd33d2c9d2554201568","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/wagtail/wagtail/commit/b8a2040dfcdb97498b746254ad8bb4e47e21358c","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/wagtail/wagtail/commit/cba80389067121c0fae41a3312e2daf76f0eb206","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/wagtail/wagtail/releases/tag/v7.0.9","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/wagtail/wagtail/releases/tag/v7.3.4","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/wagtail/wagtail/releases/tag/v7.4.3","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/wagtail/wagtail/releases/tag/v8.0rc2","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/advisories/GHSA-c2xx-cjmh-9q8f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123820.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123820","tags":["advisory"]},{"url":"https://github.com/wagtail/wagtail","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-123820","title":"Wagtail: Improper restriction handling on descendant collections in Documents and Images API","description":"Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.","status":"published","published":"2026-11-09T21:24:03.328Z","modified":"2026-11-10T16:16:01.297Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-280"],"updated_at":"2026-11-09T22:35:08.962494Z"}],"euvd":[{"id":"EUVD-2026-120458","description":"Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.","status":"published","published":"2026-11-09T21:24:03Z","modified":"2026-11-10T16:16:01Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-09T22:18:21.405141Z"}],"ghsa":[{"id":"GHSA-c2xx-cjmh-9q8f","title":"Wagtail: Improper restriction handling on descendant collections in Documents and Images API","description":"### Impact\n\nThe Documents and Images [API V2](https://docs.wagtail.org/en/stable/advanced_topics/api/index.html) incorrectly listed items in descendants of private collections, which should inherit the view restrictions defined on their ancestors. A user with access to the API could see the filename and name of documents and images in these descendant collections.\n\n### Patches\n\nPatched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.\n\n### Workarounds\n\nSite owners using Wagtail's API can avoid the vulnerability by adding [authentication](https://docs.wagtail.org/en/stable/advanced_topics/api/v2/configuration.html#authentication) to the Documents and Images APIs.\n\n\n### Acknowledgements\n\nMany thanks to Ta Duc Thien for reporting this issue.\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* Visit Wagtail's [support channels](https://docs.wagtail.org/en/stable/support.html)\n* Email us at [security@wagtail.org](mailto:security@wagtail.org) (view our [security policy](https://github.com/wagtail/wagtail/security/policy) for more information).","status":"published","published":"2026-08-20T18:45:14Z","modified":"2026-08-20T18:45:15Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-280"],"updated_at":"2026-11-02T14:41:04.755504Z"}],"nvd":[{"id":"CVE-2026-123820","description":"Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.","status":"published","published":"2026-11-09T22:18:38.77Z","modified":"2026-11-12T19:18:09.51Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-280"],"updated_at":"2026-11-09T23:16:05.865626Z"}],"osv":[{"id":"CVE-2026-123820","title":"Wagtail: Improper restriction handling on descendant collections in Documents and Images API","description":"Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.","status":"published","published":"2026-11-09T21:24:03.328Z","modified":"2026-11-11T02:48:44.906610327Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-280"],"updated_at":"2026-11-11T03:22:00.901153Z"},{"id":"GHSA-c2xx-cjmh-9q8f","title":"Wagtail: Improper restriction handling on descendant collections in Documents and Images API","description":"### Impact\n\nThe Documents and Images [API V2](https://docs.wagtail.org/en/stable/advanced_topics/api/index.html) incorrectly listed items in descendants of private collections, which should inherit the view restrictions defined on their ancestors. A user with access to the API could see the filename and name of documents and images in these descendant collections.\n\n### Patches\n\nPatched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.\n\n### Workarounds\n\nSite owners using Wagtail's API can avoid the vulnerability by adding [authentication](https://docs.wagtail.org/en/stable/advanced_topics/api/v2/configuration.html#authentication) to the Documents and Images APIs.\n\n\n### Acknowledgements\n\nMany thanks to Ta Duc Thien for reporting this issue.\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* Visit Wagtail's [support channels](https://docs.wagtail.org/en/stable/support.html)\n* Email us at [security@wagtail.org](mailto:security@wagtail.org) (view our [security policy](https://github.com/wagtail/wagtail/security/policy) for more information).","status":"published","published":"2026-08-20T18:45:14Z","modified":"2026-11-10T10:56:16.033143294Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-280"],"updated_at":"2026-11-10T11:27:54.960827Z"}]}}