CVE-2025-27571

Source
https://cve.org/CVERecord?id=CVE-2025-27571
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27571.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-27571
Aliases
Downstream
Related
Published
2025-04-16T07:45:58.802Z
Modified
2026-07-08T06:38:34.941075535Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Channel metadata visible in archived channels despite configuration setting
Details

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the "Allow Users to View Archived Channels" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived.

Database specific
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "10.5.0"
                },
                {
                    "last_affected": "10.5.1"
                },
                {
                    "introduced": "10.4.0"
                },
                {
                    "last_affected": "10.4.3"
                },
                {
                    "introduced": "9.11.0"
                },
                {
                    "last_affected": "9.11.9"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27571.json",
    "cna_assigner": "Mattermost",
    "cwe_ids": [
        "CWE-863"
    ]
}
References

Affected packages

Git / github.com/mattermost/mattermost

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost
Events
Database specific
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "9.11.0"
        },
        {
            "fixed": "9.11.10"
        },
        {
            "introduced": "10.4.0"
        },
        {
            "fixed": "10.4.4"
        },
        {
            "introduced": "10.5.0"
        },
        {
            "fixed": "10.5.2"
        }
    ]
}

Affected versions

@mattermost/client@10.*
@mattermost/client@10.4.0
@mattermost/client@10.5.0
@mattermost/client@9.*
@mattermost/client@9.11.0
@mattermost/types@10.*
@mattermost/types@10.4.0
@mattermost/types@10.5.0
@mattermost/types@9.*
@mattermost/types@9.11.0
v10.*
v10.4.0
v10.4.0-rc3
v10.4.1
v10.4.2
v10.4.3
v10.4.3-rc1
v10.4.3-rc2
v10.4.3-rc3
v10.5.0
v10.5.0-rc6
v10.5.1
v10.5.1-rc1
v10.5.1-rc2
v9.*
v9.11.0
v9.11.0-rc3
v9.11.1
v9.11.1-rc1
v9.11.10-rc1
v9.11.2
v9.11.2-rc1
v9.11.2-rc2
v9.11.3
v9.11.3-rc1
v9.11.3-rc2
v9.11.4
v9.11.4-rc1
v9.11.5
v9.11.5-rc1
v9.11.6
v9.11.6-rc1
v9.11.6-rc2
v9.11.7
v9.11.7-rc1
v9.11.7-rc2
v9.11.7-rc3
v9.11.8
v9.11.9
v9.11.9-rc1
v9.11.9-rc2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27571.json"