{"id":"CVE-2021-22896","details":"Nextcloud Mail before 1.9.5 suffers from improper access control due to a missing permission check allowing other authenticated users to create mail aliases for other users.","modified":"2026-04-10T04:30:14.637173Z","published":"2021-06-11T16:15:10.887Z","related":["GHSA-jmgp-77jq-fjp3"],"references":[{"type":"ADVISORY","url":"https://github.com/nextcloud/mail/releases/tag/v1.9.5"},{"type":"ADVISORY","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jmgp-77jq-fjp3"},{"type":"ADVISORY","url":"https://hackerone.com/reports/1129996"},{"type":"FIX","url":"https://github.com/nextcloud/mail/pull/4864"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/mail","events":[{"introduced":"0"},{"fixed":"11434a58dd79fccb02de18cead5b37dfe0c6e871"}]},{"type":"GIT","repo":"https://github.com/nextcloud/mail","events":[{"introduced":"0"},{"fixed":"11434a58dd79fccb02de18cead5b37dfe0c6e871"}]}],"versions":["1.6.2","nighly-20170831","nightly-20161202","nightly-20161208","nightly-20161218","nightly-20170117","nightly-20170612","nightly-20170823","nightly-20170831","nightly-20170906","nightly-20170913","nightly-20171127","nightly-20171212","nightly-20180410","nightly-20200115","nightly-20200423","nightly-20200427","nightly-20200506","nightly-20200513","untagged-bd8a3cab1eb0022ec683","v0.1.0","v0.1.3","v0.10.0","v0.11.0","v0.12.0","v0.12.0-RC2","v0.12.0-RC3","v0.12.0-alpha3","v0.12.0-beta1","v0.12.0-beta2","v0.12.0-beta4","v0.12.0-beta5","v0.13.0","v0.14.0","v0.15.0","v0.15.1","v0.15.2","v0.15.3","v0.15.4","v0.15.5","v0.16.0","v0.17.0","v0.18.0","v0.18.0-RC1","v0.18.1","v0.19.0","v0.19.1","v0.2.0","v0.20.0","v0.20.1","v0.20.2","v0.20.3","v0.21.0","v0.21.1","v0.3.0","v0.4.0","v0.4.1","v0.4.2","v0.4.3","v0.4.4","v0.5.0","v0.5.1","v0.5.2","v0.6.2","v0.7.0","v0.7.1","v0.7.10","v0.7.2","v0.7.3","v0.7.4","v0.7.5","v0.7.6","v0.7.7","v0.7.8","v0.7.9","v0.8.0","v0.8.0-alpha1","v0.8.0-beta1","v0.8.1","v0.8.2","v0.8.3","v0.9.0","v1.0.0","v1.1.0","v1.1.1","v1.1.2","v1.3.0","v1.3.0-RC1","v1.3.0-beta1","v1.3.0-beta2","v1.3.0-beta3","v1.3.1","v1.3.2","v1.3.3","v1.4.0-beta1","v1.4.0-beta2","v1.4.0-rc1","v1.5.0","v1.5.0-alpha3","v1.5.0-beta1","v1.5.0-beta2","v1.5.0-beta3","v1.5.0-rc1","v1.5.0-rc2","v1.6.0","v1.7.0","v1.8.0","v1.9.0","v1.9.0-alpha2","v1.9.0-alpha3","v1.9.1","v1.9.2","v1.9.3","v1.9.4"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"1.9.5"}]},{"events":[{"introduced":"0"},{"fixed":"1.9.5"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22896.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}