CVE-2026-26304

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Source
https://cve.org/CVERecord?id=CVE-2026-26304
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26304.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-26304
Aliases
Downstream
Related
Published
2026-03-16T20:16:17.730Z
Modified
2026-04-10T05:41:01.769252Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2 fail to verify run_create permission for empty playbookId, which allows team members to create unauthorized runs via the playbook run API. Mattermost Advisory ID: MMSA-2025-00542

References

Affected packages

Git / github.com/mattermost/mattermost-server

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost-server
Events
Introduced
ab7b138824c61fe1fe815243d7e2a914dec49c8b
Fixed
005521aa79666e6960bc3302f6172b810f6bff3a
Introduced
d27a2195068ddfa3ce17cf470f9739e4edb94b83
Fixed
4082c3dcf285e4d1a386d2ef37f14f39dc5a0094
Database specific 
{
    "versions": [
        {
            "introduced": "11.2.0"
        },
        {
            "fixed": "11.2.3"
        },
        {
            "introduced": "11.3.0"
        },
        {
            "fixed": "11.3.1"
        }
    ]
}

Affected versions

@mattermost/client@11.*
@mattermost/client@11.3.0
@mattermost/types@11.*
@mattermost/types@11.3.0
mattermost-redux@11.*
mattermost-redux@11.3.0
v11.*
v11.2.0
v11.2.1
v11.2.1-rc1
v11.2.2
v11.3.0
v11.3.0-rc3
v11.3.0-rc4
v11.3.1-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26304.json"