CVE-2026-45284
Nextcloud: Wrong condition in the User OIDC app's LdapService allowed deleted LDAP users to authenticate
CVSS Score
4.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-284 |
| Vendor | nextcloud |
| Product | security-advisories |
| Published | Jun 1, 2026 |
| Last Updated | Jun 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Affected Versions
nextcloud / security-advisories
>= 1.3.6, < 8.4.0