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vuln-cve/data/2026/11xxx/CVE-2026-11993.json
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{
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"cveId": "CVE-2026-11993",
"assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
"state": "PUBLISHED",
"assignerShortName": "Mattermost",
"dateReserved": "2026-06-11T14:54:55.079Z",
"datePublished": "2026-09-14T10:29:19.934Z",
"dateUpdated": "2026-09-14T19:36:34.391Z"
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"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
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"status": "affected",
"version": "11.9.0",
"versionType": "semver"
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"lessThanOrEqual": "11.8.4",
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"credits": [
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"lang": "en",
"type": "finder",
"value": "JG Heithcock"
}
],
"descriptions": [
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"lang": "en",
"value": "Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to properly enforce the limit of concurrent files being processed and handled failed files, which allows a user with permission to upload files to spawn more goroutines than intended and block the indexing of other files via uploading heavy files constantly to the server.. Mattermost Advisory ID: MMSA-2026-00696"
}
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"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW",
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"baseSeverity": "MEDIUM",
"baseScore": 4.3
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"cweId": "CWE-770"
}
]
}
],
"references": [
{
"url": "https://mattermost.com/security-updates",
"name": "MMSA-2026-00696",
"tags": [
"vendor-advisory"
]
}
],
"solutions": [
{
"value": "Update Mattermost to versions 11.10.0, 11.9.1, 11.8.5, 11.7.8, 10.11.23 or higher.",
"lang": "en"
}
],
"source": {
"advisory": "MMSA-2026-00696",
"defect": [
"https://mattermost.atlassian.net/browse/MM-69217"
],
"discovery": "{\"self\"=>\"https://mattermost.atlassian.net/rest/api/2/customFieldOption/10557\", \"value\"=>\"Internal\", \"id\"=>\"10557\"}"
},
"title": "Fix authenticated members disabling file content indexing server-wide via extraction pool exhaustion",
"providerMetadata": {
"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
"shortName": "Mattermost",
"dateUpdated": "2026-09-14T10:29:19.934Z"
},
"x_generator": {
"engine": "cvelib 1.8.0"
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"adp": [
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"metrics": [
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"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-14T19:36:23.391913Z",
"id": "CVE-2026-11993",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
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"shortName": "CISA-ADP",
"dateUpdated": "2026-09-14T19:36:34.391Z"
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}