CVE-2023-28998
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-28998
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-28998.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-28998
- Aliases
-
- GHSA-jh3g-wpwv-cqgr
- Downstream
- Published
- 2023-04-04T12:45:42.156Z
- Modified
- 2025-12-04T23:45:58.594483Z
- Severity
-
- 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
- Summary
- Nextcloud Desktop client misbehaves with E2EE when the server returns empty list of metadata keys
- Details
-
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files. Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-325" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28998.json" }- References
-
- https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28998.json
- https://github.com/nextcloud/desktop/pull/5323
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr
- https://nvd.nist.gov/vuln/detail/CVE-2023-28998