CVE-2026-45275

Published: Jun 1, 2026Modified: Jul 22, 2026

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, a privilege escalation vulnerability exists in the Approval app that allows a user without sharing permissions to force the system to share a file with approvers. This results in an authorization bypass and privilege escalation, allowing unauthorized distribution of restricted files. This issue has been patched in version 2.7.2.

Affected (1)

Products: Nextcloud: Approval

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Nextcloud Approval	Before 2.7.2

Related CWEs

Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

References (3)

https://github.com/nextcloud/approval/pull/392

Source: security-advisories@github.com

Issue TrackingPatch

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v8q8-w6c3-3gv9

Source: security-advisories@github.com

MitigationVendor Advisory

https://hackerone.com/reports/3593780

Source: security-advisories@github.com

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Timeline

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