CVE-2026-45810

MEDIUM EPSS 16.4%
Published Jun 1, 20264w ago · Modified Jun 17, 20261w ago
6.8 CVSS 3.1
Medium
Find Similar
Published Jun 1, 2026 4w ago
Last Modified Jun 17, 2026 1w ago

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

CVSS Details

Base Score
6.8
Exploitability
2.3
Impact
4.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
16.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-639

Affected Products 14

VendorProductVersionRange
nextcloudnextcloud_server*≥31.0.0  –  <31.0.12
nextcloudnextcloud_server*≥32.0.0  –  <32.0.3
nextcloudnextcloud_server*≥21.0.0  –  <21.0.9.20
nextcloudnextcloud_server*≥22.0.0  –  <22.2.10.35
nextcloudnextcloud_server*≥23.0.0  –  <23.0.12.31
nextcloudnextcloud_server*≥24.0.0  –  <24.0.12.30
nextcloudnextcloud_server*≥25.0.0  –  <25.0.13.25
nextcloudnextcloud_server*≥26.0.0  –  <26.0.13.22
nextcloudnextcloud_server*≥27.0.0  –  <27.1.11.22
nextcloudnextcloud_server*≥28.0.0  –  <28.0.14.13
nextcloudnextcloud_server*≥29.0.0  –  <29.0.16.10
nextcloudnextcloud_server*≥30.0.0  –  <30.0.17.5
nextcloudnextcloud_server*≥31.0.0  –  <31.0.12
nextcloudnextcloud_server*≥32.0.0  –  <32.0.3

References 3

  • github.com https://github.com/nextcloud/security-advisories/security/advisories/GHSA-285v-p9x9-cjhj
    Vendor Advisory
  • github.com https://github.com/nextcloud/server/pull/56982
    Issue TrackingPatch
  • hackerone.com https://hackerone.com/reports/3425534
    Permissions Required

Remediation

  • github.com https://github.com/nextcloud/server/pull/56982
    Issue TrackingPatch