CVE-2026-45810

Medium

Description

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.12, and 32.0.0 to before 32.0.3, a missing check of a relation allowed authenticated users with access to any file comment, to read the content of all comments. It is recommended that the Nextcloud Server is upgraded to 31.0.12 or 32.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 21.0.9.20, 22.2.10.35, 23.0.12.31, 24.0.12.30, 25.0.13.25, 26.0.13.22, 27.1.11.22, 28.0.14.13, 29.0.16.10, 30.0.17.5, 31.0.12 or 32.0.3

SeverityMedium
CVSS6.8
Exploit probability—
ProductNextcloud Server
PublishedJun 1, 2026
First seenJun 1, 2026

How to fix

Update
  • nextcloud nextcloud_server31.0.12, 32.0.3, 21.0.9.20, 22.2.10.35, 23.0.12.31, 24.0.12.30, 25.0.13.25, 26.0.13.22, 27.1.11.22, 28.0.14.13, 29.0.16.10, 30.0.17.5 or later

Affected products

ProductAffected versionsFixed in
nextcloud nextcloud_server31.0.0 ≤ v < 31.0.12, 32.0.0 ≤ v < 32.0.3, 21.0.0 ≤ v < 21.0.9.20, 22.0.0 ≤ v < 22.2.10.35, 23.0.0 ≤ v < 23.0.12.31, 24.0.0 ≤ v < 24.0.12.30, 25.0.0 ≤ v < 25.0.13.25, 26.0.0 ≤ v < 26.0.13.22, 27.0.0 ≤ v < 27.1.11.22, 28.0.0 ≤ v < 28.0.14.13, 29.0.0 ≤ v < 29.0.16.10, 30.0.0 ≤ v < 30.0.17.531.0.12, 32.0.3, 21.0.9.20, 22.2.10.35, 23.0.12.31, 24.0.12.30, 25.0.13.25, 26.0.13.22, 27.1.11.22, 28.0.14.13, 29.0.16.10, 30.0.17.5

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