CVE-2026-75587

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Source
https://cve.org/CVERecord?id=CVE-2026-75587
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75587.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-75587
Published
2026-08-17T22:09:49Z
Modified
2026-08-24T03:47:22Z
Severity
  • 3.6 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N CVSS Calculator
Summary
Plaintext pre-auth secret exposure via Desktop App diagnostics report
Details

Mattermost Desktop App versions <=6.2 6.2.2.0 fail to redact the pre-auth secret when generating a diagnostics report, which allows a local attacker with access to a user's diagnostics report or log files to obtain the plaintext pre-auth secret configured for a connected server via inspecting the Server Connectivity (Step-3) diagnostics output. Mattermost Advisory ID: MMSA-2026-00716

Database specific 
{
    "cna_assigner": "Mattermost",
    "cwe_ids": [
        "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75587.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "last_affected": "6.2.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/mattermost/desktop

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/desktop
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
99b6258eda51936ee4004a4e0175db06d65cc106
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "6.2.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

4.*
4.7.0-beta
Other
beta2
v0.*
v0.1.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.5.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.1.0
v1.1.1
v1.2.0
v1.3.0
v1.3.0-rc1
v1.3.0-rc2
v4.*
v4.7.0-beta2
v6.*
v6.2.0
v6.2.0-mas.1
v6.2.0-rc.1
v6.2.0-rc.2
v6.2.0-rc.3
v6.2.1
v6.2.1-mas.1
v6.2.1-mas.2
v6.2.1-rc.1
v6.2.2
v6.2.2-mas.1
v6.2.2-rc.1
v6.2.3-rc.1
v6.2.3-rc.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75587.json"