Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-45157 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:3.5 LOWVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:6.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-45pj-p7x7-4mhc	[email protected]	AdvisoryRemedyVendor
https://github.com/nextcloud/server/pull/59780	[email protected]	Issue TrackingVendor
https://hackerone.com/reports/3483708	[email protected]	Issue TrackingPartial Content

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-284	Improper Access Control	[email protected]

Affected Products

Product	Versions
Nextcloud	>= 32.0.0 (semver) >= 33.0.0 (semver)
CPE cpe:2.3:a:nextcloud:nextcloud:::::::: Remediation Upgrade: 32.0.9moderate effort Upgrade: 33.0.3moderate effort
Nextcloud Enterprise Server	>= 26.0.0 (semver) >= 27.0.0 (semver) >= 28.0.0 (semver) >= 29.0.0 (semver) >= 30.0.0 (semver)
CPE cpe:2.3:a:nextcloud:nextcloud_server:::::::: Remediation Upgrade: 26.0.13.26moderate effort Upgrade: 27.1.11.25moderate effort Upgrade: 28.0.14.17moderate effort Upgrade: 29.0.16.16moderate effort Upgrade: 30.0.17.9moderate effort Upgrade: 31.0.14.5moderate effort Upgrade: 32.0.9moderate effort Upgrade: 33.0.3moderate effort

Change History

4 change records found show changes

Date	Action	Recorded By
Jul 22, 2026	CVE Translated	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 1, 2026	New CVE Received	[email protected]