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CVE-2026-45284

Nextcloud: Wrong condition in the User OIDC app's LdapService allowed deleted LDAP users to authenticate

Published: Jun 1, 2026Updated: Jul 22, 2026 Sources: CVE List NVDCWE-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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:RS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low

Weaknesses

Affected Products

nextcloud
oss-project·DEaka nextcloud server

Exploitability

Official Patch Available
Workaround Available

References

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