CVE-2026-82980

Any authenticated user can lock or unlock files they do not own by targeting absolute WebDAV paths of other users. The DAV plugin resolves files from the absolute request URI without verifying that the path segment matches the authenticated session user. This enables: Cross-user manual locks :...

EUVD-2026-82617

Any authenticated user can lock or unlock files they do not own by targeting absolute WebDAV paths of other users. The DAV plugin resolves files from the absolute request URI without verifying that the path segment matches the authenticated session user. This enables: Cross-user manual locks :...

CVE-2026-82980

CVE-2026-82980 affects a WebDAV (DAV) plugin where file paths are resolved from the absolute request URI without verifying that the path segment matches the authenticated session user. This allows any authenticated user to perform cross-user manual locks on files they do not own, blocking writes ...

CVE-2026-82980: Improper Authentication

Any authenticated user can lock or unlock files they do not own by targeting absolute WebDAV paths of other users. The DAV plugin resolves files from the absolute request URI without verifying that the path segment matches the authenticated session user. This enables: Cross-user manual locks :...

CVE-2026-45283: Improper Authentication

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 fileslock app did not properly validate the ownership of files when processing DAV lock and unlock requests. An authenticated user could lock or...