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CVE PROGRAM SOURCE RECORD3.3 Low

CVE-2026-45278

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

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nextcloud security-advisories

  • >= 6.1.0, < 8.2.2affected

References