Security Advisory

CVE-2026-45156

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-01 16:38:46
Last updated 2026-06-03 03:55:47
Assigner GitHub_M
CVSS score not scored
State PUBLISHED

Description

Nextcloud is an open source content collaboration platform. From versions 0.3.0 to before 3.1.0, 5.0.0 to before 5.1.0, and 6.0.0 to before 6.4.0, a missing signature verification in User OIDC allowed a malicious ID4me authority to identify as any user. This issue has been patched in versions 3.1.0, 4.1.0, 5.1.0, 6.4.0 and 8.3.0.