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.

Project Subscriptions

Vendors Products
Nextcloud Subscribe
User Oidc Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 03 Jun 2026 17:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*

Wed, 03 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
First Time appeared Nextcloud
Nextcloud user Oidc
Vendors & Products Nextcloud
Nextcloud user Oidc

Tue, 02 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 01 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title Nextcloud: Open Redirect in user_oidc login flow via protocol-relative URL bypass
Weaknesses CWE-601
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-02T15:20:49.300Z

Reserved: 2026-05-11T18:41:13.157Z

Link: CVE-2026-45278

cve-icon Vulnrichment

Updated: 2026-06-02T15:20:44.183Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-01T19:16:49.823

Modified: 2026-06-03T17:34:59.147

Link: CVE-2026-45278

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T20:53:55Z

Weaknesses