CVE-2026-19076
| Reporter | Title | Published | Views | Family All 10 |
|---|---|---|---|---|
 | CVE-2026-19076 | 16 Oct 202608:11 | – | circl |
 | Mattermost authorization issue vulnerabilities | 15 Oct 202616:00 | – | cnnvd |
 | CVE-2026-19076 Mattermost fails to reject OAuth application sessions in account type switch, allowing account takeover via bearer token | 16 Oct 202607:11 | – | cvelist |
 | EUVD-2026-102747 | 16 Oct 202607:11 | – | euvd |
 | CVE-2026-19076 | 16 Oct 202607:11 | – | mend |
 | CVE-2026-19076 | 16 Oct 202608:17 | – | nvd |
 | CVE-2026-19076 Mattermost fails to reject OAuth application sessions in account type switch, allowing account takeover via bearer token | 16 Oct 202607:11 | – | osv_cve |
 | PT-2026-115513 | 16 Oct 202600:00 | – | ptsecurity |
 | CVE-2026-19076: Incorrect Authorization | 16 Oct 202600:00 | – | rapid7 |
 | CVE-2026-19076 Mattermost fails to reject OAuth application sessions in account type switch, allowing account takeover via bearer token | 16 Oct 202607:11 | – | vulnrichment |
Node
OR
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "11.10.0",
"status": "affected",
"version": "11.10.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "11.7.9",
"status": "affected",
"version": "11.7.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "11.9.1",
"status": "affected",
"version": "11.9.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "11.8.5",
"status": "affected",
"version": "11.8.0",
"versionType": "semver"
},
{
"version": "11.11.0",
"status": "unaffected"
},
{
"version": "11.10.1",
"status": "unaffected"
},
{
"version": "11.7.10",
"status": "unaffected"
},
{
"version": "11.9.2",
"status": "unaffected"
},
{
"version": "11.8.6",
"status": "unaffected"
}
]
}
]| Source | Link |
|---|---|
| mattermost | www.mattermost.com/security-updates |
| Parameter | Position | Path | Description | CWE |
|---|---|---|---|---|
| password | request body | /api/v4/users/login/switch | Mattermost fails to reject OAuth application sessions in the account type switch endpoint, allowing an attacker with a valid OAuth bearer token to take over an SSO-backed account by setting a password and detaching the identity provider. | CWE-863 |
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27 Oct 2026 20:57Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.4 - 4.9
EPSS0.00199
SSVC