CVEvulnerability
CVE-2026-45284
8.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-01
- Last modified
- 2026-07-22
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.6 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-284
Description
Nextcloud is an open source content collaboration platform. From version 1.3.6 to before version 8.4.0, an improper check allowed users that where provided by LDAP to still authenticate towards user OIDC after they where deleted. This issue has been patched in version 8.4.0.
Affected configurations
• nextcloud user oidc (>= 1.3.6 < 8.4.0)
Related
Weakness · CWE (1)
- CWE-284 Improper Access Control weakness
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-79xf-ffj8-96fm Mitigation, Vendor Advisory
- https://github.com/nextcloud/user_oidc/pull/1340 Issue Tracking, Patch
- https://hackerone.com/reports/3554696 Permissions Required