CVE catalog

CVE-2026-45810

Nextcloud is an open source content collaboration…

[CVE catalog]

A flaw was found in Nextcloud Server. An authenticated user with access to any file comment could exploit a missing relation check. This vulnerability allows the user to read the content of all comments within the system, leading to information disclosure. Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Severity
Medium · CVSS 6.8CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.25% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
UnknownRelease not reportednextcloud_server21.0.9.20UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server22.2.10.35UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server23.0.12.31UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server24.0.12.30UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server25.0.13.25UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server26.0.13.22UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server27.1.11.22UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server28.0.14.13UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server29.0.16.10UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server30.0.17.5UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server31.0.12UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server32.0.3UnknownSource applicability is not establishedProvider not reported
Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
UnknownRelease not reportednextcloud_server21.0.9.20UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server22.2.10.35UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server23.0.12.31UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server24.0.12.30UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server25.0.13.25UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server26.0.13.22UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server27.1.11.22UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server28.0.14.13UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server29.0.16.10UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server30.0.17.5UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server31.0.12UnknownSource applicability is not establishedProvider not reported
UnknownRelease not reportednextcloud_server32.0.3UnknownSource applicability is not establishedProvider not reported
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "nextcloud_server",
      "fixed_version": "31.0.12",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "32.0.3",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "21.0.9.20",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "22.2.10.35",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "23.0.12.31",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "24.0.12.30",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "25.0.13.25",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "26.0.13.22",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "27.1.11.22",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "28.0.14.13",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "29.0.16.10",
      "applicability_unknown": true
    },
    {
      "name": "nextcloud_server",
      "fixed_version": "30.0.17.5",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]