{"id":"CVE-2021-29659","aliases":["EUVD-2021-16133","GHSA-fprx-w866-m96j"],"status":"published","title":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information...","description":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01327,"percentile":0.71366,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-05-20T12:46:20Z","modified":"2026-10-24T10:31:04Z","products":[{"vendor":"owncloud","product":"owncloud_server"}],"references":[{"url":"https://doc.owncloud.com/server/admin_manual/release_notes.html","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://owncloud.com/security-advisories/cve-2021-29659/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29659"},{"url":"https://owncloud.com/security-advisories/cve-2021-29659"},{"url":"https://github.com/advisories/GHSA-fprx-w866-m96j"}],"sources":{"cve":[{"id":"CVE-2021-29659","description":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.","status":"published","published":"2021-05-20T12:46:20Z","modified":"2024-08-03T22:11:06.357Z","updated_at":"2026-11-02T14:33:06.658806Z"}],"euvd":[{"id":"EUVD-2021-16133","description":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.","status":"published","published":"2021-05-20T12:46:20Z","modified":"2024-08-03T22:11:06Z","updated_at":"2026-11-03T03:24:43.965438Z"}],"ghsa":[{"id":"GHSA-fprx-w866-m96j","title":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information...","description":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.","status":"published","published":"2022-05-24T19:02:53Z","modified":"2025-03-31T12:31:47Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:00:32.65938Z"}],"nvd":[{"id":"CVE-2021-29659","description":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.","status":"published","published":"2021-05-20T13:15:07.627Z","modified":"2026-06-17T03:48:06.363Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:53.987491Z"}],"osv":[{"id":"CVE-2021-29659","description":"ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.","status":"published","published":"2021-05-20T13:15:07.627Z","modified":"2026-10-24T10:31:04.388370041Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:19.483607Z"}]}}