UpHeron
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Servers and applications

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 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…

Severity
Medium 4.3
Published
1 Jun 2026
Last changed
22 Jul 2026
Added to UpHeron
21 Oct 2026
Fixed in
31.0.14.4, 32.0.2, 33.0.1
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • From 31.0.0 before 31.0.14.4
  • From 32.0.0 before 32.0.2
  • From 33.0.0 before 33.0.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-45283
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-45283