CVE-2026-2476

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Source
https://cve.org/CVERecord?id=CVE-2026-2476
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2476.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-2476
Aliases
Downstream
Related
Published
2026-03-16T11:11:07.387Z
Modified
2026-07-08T07:32:25.901467607Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N CVSS Calculator
Summary
MS Teams plugin sensitive config values not properly masked in support packets
Details

Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "last_affected": "2.0.3"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2476.json",
    "cna_assigner": "Mattermost",
    "cwe_ids": [
        "CWE-200"
    ]
}
References

Affected packages

Git / github.com/mattermost/mattermost-plugin-msteams

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost-plugin-msteams
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
938e7ad9acfa5f9fb21dbf8890ca76f4ce42ac67
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:mattermost:ms_teams:*:*:*:*:*:mattermost:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.3.1"
        }
    ]
}

Affected versions

0.*
0.0.1-alpha
v0.*
v0.0.1
v0.2.0
v0.3.0
v0.3.1
v0.3.10
v0.3.12
v0.3.13
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
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
v1.0.8
v1.1.0
v1.10.0
v1.10.1
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.2.0
v1.3.0
v1.3.1
v1.4.0
v1.4.0-rc1
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.6.0
v1.6.1
v1.7.0
v1.8.0
v1.8.1
v1.8.2
v1.9.0
v1.9.1
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.1.0
v2.1.1
v2.2.0
v2.2.0-rc1
v2.2.0-rc10
v2.2.0-rc11
v2.2.0-rc12
v2.2.0-rc13
v2.2.0-rc14
v2.2.0-rc15
v2.2.0-rc16
v2.2.0-rc17
v2.2.0-rc2
v2.2.0-rc3
v2.2.0-rc4
v2.2.0-rc5
v2.2.0-rc6
v2.2.0-rc7
v2.2.0-rc8
v2.2.0-rc9
v2.2.1
v2.2.2
v2.3.0
v2.3.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2476.json"