CVE-2023-28999: Nextcloud: Lack of authenticity of metadata keys (exact versions not specified)

CVE-2023-28999. EPSS 0.00678 (percentile 0.51805), scored 24-Oct-2026. Fixed version: 729ff137b27c49ebe1e9fcb74f420cc625d1084c. Fixed version: b15f9376b2761b7dd9726aa3a110b1077ef57094. Fixed version: 206f5d46966c0504e199307477d8ee759faa6607.

Affected technology

Nextcloud: Lack of authenticity of metadata keys · Exact affected versions not specified by the source
Vendor not specified by the source

Component: Not specified by the source

Attack conditions (OSV, CVSS 3.1): Physical access · High privileges required · User interaction required

What an attacker can do

OSV’s CVSS 3.1 assessment rates confidentiality and integrity impact as high; availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 25-Oct-2026 01:00 UTC

CCR priority: 0.2 /100 (P5)
CVSS 3.1: CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L · OSV.dev
EPSS: 0.00678 · percentile 0.51805 · 2026-10-24
KEV: no

Provenance

OSV.dev · Source record · observed 2026-10-24 16:38:25.544256+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2023-28999.html