CVE-2026-45267 MEDIUM

CVE-2026-45267: Nextcloud: Missing permission check for from submissions

Vendor Nextcloud
Product security-advisories
Weakness CWE-200 · Info exposure
Published June 1, 2026
Last update June 1, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

Nextcloud is an open source content collaboration platform. Prior to version 5.2.6, a missing permissions check allowed users to request reading form submissions of other users. This issue has been patched in version 5.2.6.

Key dates

02Disclosure timeline

June 1, 2026 CVE published
June 1, 2026 Record updated