CVE-2025-12689

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Source
https://cve.org/CVERecord?id=CVE-2025-12689
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12689.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-12689
Aliases
Published
2025-12-17T19:16:00.537Z
Modified
2026-03-12T17:36:07.656093Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.

References

Affected packages

Git / github.com/mattermost/mattermost-server

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost-server
Events
Introduced
5b955468ea1ea8b56c0fb10feb258a36a767d7bb
Fixed
9d74b930db166e933d66d1873fb87afa6bc3e600
Introduced
ba3dc1612ce8f37bf9814b1ea6364181fb5abd62
Fixed
09ae989823a456a6831eca1eb4f49c71589dafab
Database specific 
{
    "versions": [
        {
            "introduced": "10.11.0"
        },
        {
            "fixed": "10.11.7"
        },
        {
            "introduced": "10.12.0"
        },
        {
            "fixed": "10.12.3"
        }
    ]
}

Affected versions

@mattermost/client@10.*
@mattermost/client@10.11.0
@mattermost/client@10.12.0
@mattermost/types@10.*
@mattermost/types@10.11.0
@mattermost/types@10.12.0
mattermost-redux@10.*
mattermost-redux@10.11.0
mattermost-redux@10.12.0
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
v10.11.3
v10.11.4
v10.11.4-rc1
v10.11.4-rc2
v10.11.4-rc3
v10.11.5
v10.11.6
v10.12.0
v10.12.0-rc1
v10.12.0-rc2
v10.12.0-rc3
v10.12.1
v10.12.1-rc1
v10.12.2

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "11.0.0"
            },
            {
                "fixed": "11.0.5"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12689.json"