CVEvulnerability

CVE-2026-45156

8.1 HIGH Published 2026-06-01 Modified 2026-07-22 Official page ↗
Status
Deferred
Published
2026-06-01
Last modified
2026-07-22
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weaknesses
CWE-287

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.

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References