Unbounded Request Body Read in MS Teams Plugin {{/changes}} Webhook Endpoint_CVE-2026-24661

{
    "lastseen": "",
    "description": "Mattermost Plugins versions <=2.1.3.0 fail to limit the request body size on the {{/changes}} webhook endpoint which allows an authenticated attacker to cause memory exhaustion and denial of service via sending an oversized JSON payload. Mattermost Advisory ID: MMSA-2026-00611",
    "published": "2026-04-09T10:12:45.340Z",
    "modified": "2026-04-09T11:44:35.023Z",
    "type": "cve",
    "title": "Unbounded Request Body Read in MS Teams Plugin {{/changes}} Webhook Endpoint",
    "source": "Mattermost",
    "references": "https://mattermost.com/security-updates",
    "id": "CVE-2026-24661",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770"
    ],
    "cvelist": null,
    "sourceData": "Mattermost Mattermost 0",
    "sourceHref": "",
    "cvss": {
        "score": 3.7,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
        "version": "3.1"
    },
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    "href": "",
    "category_name": "CVE",
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    "product": "Mattermost",
    "version": "0",
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