CVE-2026-45153 MEDIUM

CVE-2026-45153: Nextcloud: PIN bypass in PassCodeActivity via back button

Vendor Nextcloud
Product security-advisories
Weakness CWE-287 · Improper authentication
Published June 1, 2026
Last update June 1, 2026
View on NVD All CVEs

CVSS base score

4.6/10
Attack vector Physical
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0.

Key dates

02Disclosure timeline

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