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-2026-45283

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...

CVE-2026-31526

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF subsystem. When an exception occurs during the execution of a BPF subprogram, the system may fail to release user-acquired locks. This oversight can lead to resource leaks and system instability, potentially resulting in a Denial o...