Nextcloud User Oidc vulnerabilities

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Published CVEs affecting Nextcloud User Oidc: 2 record(s), with affected versions and fixes.
cpe:2.3:a:nextcloud:user_oidc

CVE-2026-45284 High · 8.8 CWE-284 Jun 1, 2026

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

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.

CVE-2026-45278 Medium · 6.1 CWE-601 Jun 1, 2026

Nextcloud: Open Redirect in user_oidc login flow via protocol-relative URL bypass

Nextcloud is an open source content collaboration platform. From version 6.1.0 to before version 8.2.2, an attacker can craft links that would redirect users to another website, when the victim uses the attackers link to log in via user OIDC. This issue has been patched in version 8.2.2.