CVE-2026-4858 Path traversal in integration action URL leading to arbitrary API execution via system admin’s auth token.
| Reporter | Title | Published | Views | Family All 20 |
|---|---|---|---|---|
 | CVE-2026-4858 | 21 May 202608:12 | – | attackerkb |
 | Mattermost Path Traversal Unauthorized Access | 6 Jul 202600:00 | – | bdu_fstec |
 | CVE-2026-4858 | 19 May 202600:51 | – | circl |
 | Mattermost 路径遍历漏洞 | 21 May 202600:00 | – | cnnvd |
 | CVE-2026-4858 | 21 May 202608:12 | – | cve |
 | EUVD-2026-31242 | 21 May 202608:12 | – | euvd |
 | Mattermost has a Path Traversal issue | 21 May 202609:32 | – | github |
 | Mattermost Server 10.11.x < 10.11.15 / 11.4.x < 11.4.5 / 11.5.x < 11.5.4 / 11.6.x < 11.6.1 Path Traversal (MMSA-2026-00640) | 28 May 202600:00 | – | nessus |
 | CVE-2026-4858 | 21 May 202608:12 | – | mend |
 | CVE-2026-4858 | 21 May 202609:16 | – | nvd |
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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21 May 2026 08:12Current
CVSS 3.18
EPSS0.00395
SSVC