CVE-2026-45284

Published: Giu 01, 2026 Last Modified: Giu 01, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 4,6
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low

Description

AI Translation Available

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.

284

Improper Access Control

Incomplete
Abstraction: Pillar Structure: Simple
Common Consequences
Security Scopes Affected:
Other
Potential Impacts:
Varies By Context
Applicable Platforms
Technologies: Not Technology-Specific, ICS/OT, Web Based
View CWE Details
https://github.com/nextcloud/security-advisories/security/a…
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-79xf-…
https://github.com/nextcloud/user_oidc/pull/1340
https://github.com/nextcloud/user_oidc/pull/1340
https://hackerone.com/reports/3554696
https://hackerone.com/reports/3554696