CVE-2026-45157

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

6.3

Vector

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

Exploitability: 2.1 / Impact: 4.2

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

Description

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, when a malicious user has access to a file share of a user, they could use this share token to also access the chunking upload directly and see temporary part files during on going uploads. It is recommended that the Nextcloud Server is upgraded to 32.0.9 or 33.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 26.0.13.26, 27.1.11.25, 28.0.14.17, 29.0.16.16, 30.0.17.9, 31.0.14.5, 32.0.9 or 33.0.3

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References (3)

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-45pj-p7x7-4mhc

Source: security-advisories@github.com

https://github.com/nextcloud/server/pull/59780

Source: security-advisories@github.com

https://hackerone.com/reports/3483708

Source: security-advisories@github.com

Timeline

No history available yet.