{"id":"CVE-2023-28845","summary":"Chat room membership disclosed via autocompletion in Nextcloud talk","details":"Nextcloud talk is a video & audio conferencing app for Nextcloud. In affected versions the talk app does not properly filter access to a conversations member list. As a result an attacker could use this vulnerability to gain information about the members of a Talk conversation, even if they themselves are not members. It is recommended that the Nextcloud Talk is upgraded to 14.0.9 or 15.0.4. There are no known workarounds for this vulnerability.","aliases":["GHSA-3m6r-479j-4chf"],"modified":"2026-04-02T08:49:12.299749Z","published":"2023-03-31T22:13:44.046Z","database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28845.json","cwe_ids":["CWE-284"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28845.json"},{"type":"ADVISORY","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3m6r-479j-4chf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28845"},{"type":"FIX","url":"https://github.com/nextcloud/spreed/pull/8651"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/spreed","events":[{"introduced":"7149ff90e030daff312bf973d5c9b219e0fa6061"},{"fixed":"f9740bfbf84453492843333e80691c091c0be6ea"}],"database_specific":{"versions":[{"introduced":"15.0.0"},{"fixed":"15.0.4"}]}},{"type":"GIT","repo":"https://github.com/nextcloud/spreed","events":[{"introduced":"96fdd42ed0eda2bd882753f2436ac6f06fda4a60"},{"fixed":"69e83698b6d36466812c4fa571e7dcb199743354"}],"database_specific":{"versions":[{"introduced":"14.0.0"},{"fixed":"14.0.9"}]}}],"versions":["v14.0.0","v14.0.1","v14.0.2","v14.0.3","v14.0.4","v14.0.5","v14.0.6","v14.0.7","v14.0.8","v15.0.0","v15.0.1","v15.0.2","v15.0.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-28845.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N"}]}