CVE-2026-45284 in User OIDC

Sumário

de MITRE • 01/06/2026

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.

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• Responsável: GitHub M
• Reservar: 11/05/2026
• Divulgação: 01/06/2026
• Moderação: aceite
• Entrada: VDB-367739
• CPE: pronto
• CWE: CWE-284 (confirmado)
• CVSS: 4.6 (CNA)
• EPSS: 0.00029
• KEV: não
• Atividades: muito baixo
• Sector: Hospital, Government, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-45284
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-45284
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-45284/