{"id":"CVE-2024-52510","aliases":["DEBIAN-CVE-2024-52510","EUVD-2024-45924","GHSA-r4qc-m9mj-452v","UBUNTU-CVE-2024-52510"],"status":"published","title":"Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.","severity":{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00783,"percentile":0.56497,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-295"],"published":"2024-11-15T17:29:44Z","modified":"2026-11-02T12:03:07Z","exploits":[{"source":"pocgithub","id":"d-xuan/CVE-2024-52510","title":"d-xuan/CVE-2024-52510","date":"2024-07-04","url":"https://github.com/d-xuan/CVE-2024-52510"}],"fixes":[{"ecosystem":"Debian:13","package":"nextcloud-desktop","fixed_in":["3.15.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"nextcloud-desktop","fixed_in":["3.15.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.0-1","3.11.0-1","3.11.0-1.1","3.11.0-1.1~exp1","3.13.2-1","3.13.2-2","3.14.1-1","3.15.0-1","3.15.2-1","3.15.2-2","3.15.3-1","3.16.0-1","3.16.2-1","3.16.4-1","3.16.6-1","3.16.6-2","3.16.6-3","3.16.7-1","3.16.7-1~deb13u1","3.7.3-1","3.7.3-1+deb12u1","3.7.3-1+deb12u2","3.9.0-1","33.0.0-1","33.0.0-2","33.0.2-1","33.0.2-2","33.0.2-3","33.0.7-1","35.0.0-1","4.0.1-1","4.0.1-2","4.0.1-3","4.0.6-1"]},{"source":"osv","ecosystem":"Debian:13","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.15.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.15.0-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.3-1","2.6.0-1","2.6.1-1","2.6.1-2","2.6.2-1","2.6.2-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.3-0ubuntu1","3.3.5-1","3.3.5-1ubuntu1","3.4.2-1","3.4.2-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.9.0-1","3.10.0-1","3.11.0-1","3.11.0-1.1build3","3.11.0-1.1build4"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.16.0-1","3.16.2-1","3.16.4-1","3.16.6-1","3.16.6-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.6-1","33.0.2-1","33.0.7-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"nextcloud-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.16.6-3","3.16.7-1","4.0.1-2","4.0.1-2build1","4.0.6-1"]}],"products":[{"vendor":"kiteworks","product":"security-advisories"},{"vendor":"nextcloud","product":"desktop"},{"vendor":"nextcloud","product":"security-advisories"}],"references":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r4qc-m9mj-452v","tags":["x_refsource_CONFIRM","Third Party Advisory","advisory","report"]},{"url":"https://github.com/nextcloud/desktop/pull/7333","tags":["x_refsource_MISC","Patch","fix","report"]},{"url":"https://github.com/nextcloud/desktop/commit/97539218e6f63c3a3fd1694cb7d8aef27c5910d7","tags":["x_refsource_MISC","Patch","fix","report"]},{"url":"https://hackerone.com/reports/2597504","tags":["x_refsource_MISC","Issue Tracking","web","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/52xxx/CVE-2024-52510.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-52510","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-52510","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-52510","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-52510","tags":["report"]},{"url":"https://github.com/nextcloud/desktop/commit/8cce183ba4ce46ddef58751fe5358efdea8d0114","tags":["report"]},{"url":"https://github.com/nextcloud/desktop/commit/0e218bc5495abd422490b6b3db35ebc29d751e6c","tags":["report"]},{"url":"https://github.com/nextcloud/desktop/commit/ef811ff22058d1ec865f8433a6695cb31c9960ab","tags":["report"]},{"url":"https://github.com/nextcloud/desktop/commit/ddaaf2c344b157aac01312b8d908ffde8e17dc11","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-52510","title":"Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.","status":"published","published":"2024-11-15T17:29:44.84Z","modified":"2024-11-15T18:20:10.869Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:34:03.333404Z"}],"euvd":[{"id":"EUVD-2024-45924","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.","status":"published","published":"2024-11-15T17:29:44Z","modified":"2024-11-15T18:20:10Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:04:58.20762Z"}],"nvd":[{"id":"CVE-2024-52510","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.","status":"published","published":"2024-11-15T18:15:29.497Z","modified":"2026-06-17T08:07:21.607Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:10:37.281254Z"}],"osv":[{"id":"CVE-2024-52510","title":"Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.","status":"published","published":"2024-11-15T17:29:44.84Z","modified":"2026-10-28T02:30:46.149482723Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:44:44.032344Z"},{"id":"DEBIAN-CVE-2024-52510","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.","status":"published","published":"2024-11-15T18:15:29.497Z","modified":"2026-11-02T12:03:07.130654053Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:44.117337Z"},{"id":"UBUNTU-CVE-2024-52510","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.","status":"published","published":"2024-11-15T18:15:00Z","modified":"2026-10-17T12:57:24.884154496Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T16:55:11.182485Z"}]}}