CVE-2025-41443

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Source
https://cve.org/CVERecord?id=CVE-2025-41443
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-41443.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-41443
Aliases
Downstream
Related
Published
2025-10-16T08:10:40.582Z
Modified
2026-08-12T03:51:34.331457078Z
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
Guest user can discover active public channels
Details

Mattermost versions 10.5.x <= 10.5.12, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when accessing channel information which allows guest users to discover active public channels and their metadata via the /api/v4/teams/{team_id}/channels/ids endpoint

Database specific 
{
    "cwe_ids": [
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/41xxx/CVE-2025-41443.json",
    "cna_assigner": "Mattermost",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "10.5.0"
                },
                {
                    "last_affected": "10.5.12"
                },
                {
                    "introduced": "10.11.0"
                },
                {
                    "last_affected": "10.11.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/mattermost/mattermost

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost
Events
Introduced
58bd34fd34cbd7d3da777d627b6cffdf8a532930
Fixed
bb822798f39a7f8c58b74c603f71ffb8a8f7a9be
Introduced
5b955468ea1ea8b56c0fb10feb258a36a767d7bb
Fixed
f1f6719f38e167657caa46f45086ee3d3bf7e6d5
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "10.5.0"
        },
        {
            "fixed": "10.5.11"
        },
        {
            "introduced": "10.11.0"
        },
        {
            "fixed": "10.11.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

@mattermost/client@10.*
@mattermost/client@10.11.0
@mattermost/client@10.5.0
@mattermost/types@10.*
@mattermost/types@10.11.0
@mattermost/types@10.5.0
mattermost-redux@10.*
mattermost-redux@10.11.0
v10.*
v10.11.0
v10.11.0-rc3
v10.11.1
v10.11.1-rc1
v10.11.2
v10.11.2-rc1
v10.11.2-rc2
v10.5.0
v10.5.0-rc6
v10.5.1
v10.5.1-rc1
v10.5.1-rc2
v10.5.10
v10.5.10-rc1
v10.5.10-rc2
v10.5.11-rc1
v10.5.2
v10.5.3
v10.5.3-rc1
v10.5.4
v10.5.4-rc1
v10.5.4-rc2
v10.5.5
v10.5.5-rc1
v10.5.6
v10.5.6-rc1
v10.5.7
v10.5.8
v10.5.8-rc1
v10.5.9
v10.5.9-rc1
v10.5.9-rc2
v10.5.9-rc3
v10.5.9-rc4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-41443.json"