CVE-2026-4646 Insufficient input validation in GitHub plugin API causes denial of service
| Reporter | Title | Published | Views | Family All 18 |
|---|---|---|---|---|
 | CVE-2026-4646 | 22 May 202610:25 | – | attackerkb |
 | Mattermost API Request Handler DoS | 1 Jun 202600:00 | – | bdu_fstec |
 | CVE-2026-4646 | 22 May 202613:05 | – | circl |
 | Mattermost security vulnerabilities | 22 May 202600:00 | – | cnnvd |
 | CVE-2026-4646 | 22 May 202610:25 | – | cve |
 | EUVD-2026-31430 | 22 May 202610:25 | – | euvd |
 | Mattermost doesn't validate user-supplied input in API request handlers | 26 May 202613:30 | – | github |
 | CVE-2026-4646 | 22 May 202610:25 | – | mend |
 | CVE-2026-4646 | 22 May 202611:16 | – | nvd |
 | GHSA-RMVV-8V8W-RF7X Mattermost doesn't validate user-supplied input in API request handlers | 26 May 202613:30 | – | osv_ghsa |
10
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "11.6.0",
"status": "affected",
"version": "11.6.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "11.5.3",
"status": "affected",
"version": "11.5.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "11.4.4",
"status": "affected",
"version": "11.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.11.14",
"status": "affected",
"version": "10.11.0",
"versionType": "semver"
},
{
"version": "11.7.0",
"status": "unaffected"
},
{
"version": "11.6.1",
"status": "unaffected"
},
{
"version": "11.5.4",
"status": "unaffected"
},
{
"version": "11.4.5",
"status": "unaffected"
},
{
"version": "10.11.15",
"status": "unaffected"
}
]
}
]| Source | Link |
|---|---|
| mattermost | www.mattermost.com/security-updates |
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22 May 2026 10:25Current
CVSS 3.14.3
EPSS0.0025
SSVC