CVE-2026-19867 Uncapped mention keys in user notification properties allow CPU exhaustion during post processing
| Reporter | Title | Published | Views | Family All 6 |
|---|---|---|---|---|
 | CVE-2026-19867 | 16 Oct 202608:03 | – | circl |
 | CVE-2026-19867 | 16 Oct 202607:00 | – | cve |
 | EUVD-2026-102808 | 16 Oct 202607:00 | – | euvd |
 | CVE-2026-19867 | 16 Oct 202607:17 | – | nvd |
 | PT-2026-115519 | 16 Oct 202600:00 | – | ptsecurity |
 | CVE-2026-19867 Uncapped mention keys in user notification properties allow CPU exhaustion during post processing | 16 Oct 202607:00 | – | vulnrichment |
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "11.10.0",
"status": "affected",
"version": "11.10.0",
"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"
},
{
"lessThanOrEqual": "11.7.10",
"status": "affected",
"version": "11.7.0",
"versionType": "semver"
},
{
"version": "11.11.0",
"status": "unaffected"
},
{
"version": "11.10.1",
"status": "unaffected"
},
{
"version": "11.9.2",
"status": "unaffected"
},
{
"version": "11.8.6",
"status": "unaffected"
},
{
"version": "11.7.11",
"status": "unaffected"
}
]
}
]| Source | Link |
|---|---|
| mattermost | www.mattermost.com/security-updates |
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16 Oct 2026 07:00Current
CVSS 3.14.3
EPSS0.00212
SSVC