Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.2, and 33.0.0 to before 33.0.1, the files_lock app did not properly validate the ownership of files when processing DAV lock and unlock requests. An authenticated user could lock or unlock files belonging to other users by targeting their absolute WebDAV paths. Additionally, lock tokens were disclosed to unauthorized callers in error responses, allowing attackers to remove token-based locks placed by other users' client applications. It is recommended that the Nextcloud Server is upgraded to 32.0.2 or 33.0.1. It is recommended that the Nextcloud Enterprise Server is upgraded to 31.0.14.4 or 32.0.2 or 33.0.1
Metrics
Affected Vendors & Products
References
History
Mon, 01 Jun 2026 22:30:00 +0000
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ssvc
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Mon, 01 Jun 2026 19:00:00 +0000
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| Description | Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.2, and 33.0.0 to before 33.0.1, the files_lock app did not properly validate the ownership of files when processing DAV lock and unlock requests. An authenticated user could lock or unlock files belonging to other users by targeting their absolute WebDAV paths. Additionally, lock tokens were disclosed to unauthorized callers in error responses, allowing attackers to remove token-based locks placed by other users' client applications. It is recommended that the Nextcloud Server is upgraded to 32.0.2 or 33.0.1. It is recommended that the Nextcloud Enterprise Server is upgraded to 31.0.14.4 or 32.0.2 or 33.0.1 | |
| Title | Nextcloud: Files Lock app allows users to lock and unlock files of other users | |
| Weaknesses | CWE-287 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-01T21:42:51.254Z
Reserved: 2026-05-11T18:41:13.158Z
Link: CVE-2026-45283
Updated: 2026-06-01T21:41:54.940Z
Status : Awaiting Analysis
Published: 2026-06-01T19:16:50.523
Modified: 2026-06-02T14:00:31.067
Link: CVE-2026-45283
No data.
OpenCVE Enrichment
Updated: 2026-06-01T21:15:15Z