Medium
Google OAuth Authentication Bypass for Converted Bot Accounts
Type: advisorySources: OSV
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAuth signup flow.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-2571
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 15:19 UTC · Revision 1
Source evidence
Google OAuth Authentication Bypass for Converted Bot Accounts
core-osv · Original sourcePublished 30 May 2025, 14:22 UTC
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAuth signup flow.
osv:CVE-2025-2571
Complete source record
{
"id": "354d620083b08c2f388feddc5c396f5c3beb8e075d14947f11b7b380006148fb",
"url": "https://osv.dev/vulnerability/CVE-2025-2571",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Google OAuth Authentication Bypass for Converted Bot Accounts",
"summary": "Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAuth signup flow.",
"evidence": "osv:CVE-2025-2571",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2025-2571",
"aliases": [
"CVE-2025-2571",
"GHSA-8cgx-9ccj-3gwr",
"GO-2025-3729"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mattermost/mattermost",
"type": "GIT",
"events": [
{
"introduced": "0bc2ddd42375a75ab14e63f038165150d4f07659"
},
{
"fixed": "686c1746a0454421742e7fd22f7aecaccd7a0d0a"
},
{
"introduced": "58bd34fd34cbd7d3da777d627b6cffdf8a532930"
},
{
"fixed": "389a3acd5d77daea50ec00ed348e0fae143fc0a7"
},
{
"introduced": "5eebc77b68c0c2b63103316e3c92342c13fd93f9"
},
{
"fixed": "a8a7c04d36b32f38bea3b8982988fc02ea734ae2"
},
{
"introduced": "f6b324a9d71843e8f48eba9e90dfbeabcbac1ae7"
},
{
"fixed": "7106c46dabbd4e324ed594973ae662fa65069545"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.11.0"
},
{
"fixed": "9.11.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "10.5.0"
},
{
"fixed": "10.5.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "10.6.0"
},
{
"fixed": "10.6.3"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "10.7.0"
},
{
"fixed": "10.7.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v10.6.3-rc1",
"v10.5.4-rc1",
"v9.11.13-rc1",
"v10.6.2",
"v10.5.3",
"v9.11.12",
"v10.5.3-rc1",
"v10.6.2-rc1",
"v9.11.12-rc1",
"v10.7.0-rc2",
"v10.7.0",
"mattermost-redux@10.7.0",
"@mattermost/types@10.7.0",
"@mattermost/client@10.7.0",
"v9.11.11-rc1",
"v9.11.11",
"v9.11.10",
"v10.5.2",
"v10.6.1",
"v10.6.0-rc3",
"v10.6.0",
"mattermost-redux@10.6.0",
"@mattermost/types@10.6.0",
"@mattermost/client@10.6.0",
"v9.11.10-rc1",
"v9.11.9",
"v10.5.1",
"v10.5.1-rc2",
"v10.5.1-rc1",
"v9.11.9-rc2",
"v9.11.9-rc1",
"v10.5.0-rc6",
"v10.5.0",
"@mattermost/types@10.5.0",
"@mattermost/client@10.5.0",
"v9.11.8",
"v9.11.7-rc3",
"v9.11.7",
"v9.11.7-rc2",
"v9.11.7-rc1",
"v9.11.6",
"v9.11.6-rc2",
"v9.11.6-rc1",
"v9.11.5",
"v9.11.5-rc1",
"v9.11.4",
"v9.11.4-rc1",
"v9.11.3",
"v9.11.3-rc2",
"v9.11.3-rc1",
"v9.11.2",
"v9.11.2-rc2",
"v9.11.2-rc1",
"v9.11.1-rc1",
"v9.11.1",
"v9.11.0-rc3",
"v9.11.0",
"@mattermost/types@9.11.0",
"@mattermost/client@9.11.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-2571.json"
}
}
],
"modified": "2026-10-28T02:30:36.781908500Z",
"provider": "osv",
"references": [
"https://mattermost.com/security-updates",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2571.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-2571"
],
"provider_metadata": {
"cwe_ids": [
"CWE-303"
],
"cna_assigner": "Mattermost",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "10.7.0"
},
{
"last_affected": "10.7.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
}
]
},
{
"extracted_events": [
{
"range": [
{
"introduced": "10.6.0"
},
{
"last_affected": "10.6.2"
},
{
"introduced": "10.5.0"
},
{
"last_affected": "10.5.3"
},
{
"introduced": "9.11.0"
},
{
"last_affected": "9.11.12"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2571.json"
}
},
"related_cves": [
{
"value": "CVE-2025-2571",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 504063,
"published_at": "2025-05-30T14:22:08.913+00:00"
}