Vulnerability DatabaseCVE-2026-45278
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CVE-2026-45278
Published:June 01, 2026
Updated:June 07, 2026
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 Packages
https://github.com/nextcloud/user_oidc.git (GITHUB):
Affected version(s) >=v6.1.0 <v8.2.2
Fix Suggestion:
Update to version v8.2.2
Related Resources (3)
https://github.com/nextcloud/user_oidc/pull/1273
https://hackerone.com/reports/3464925
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8wjr-5cg8-4w73
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CVSS v4
Base Score:
4.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
URL Redirection to Untrusted Site ('Open Redirect')
CWE-601
EPSS
Base Score:
0.01