The image proxy component in Mattermost version 6.4.1 and earlier allocates memory for multiple copies of a proxied image, which allows an authenticated attacker to crash the server via links to very large image files.
{
"github_reviewed": true,
"nvd_published_at": "2022-04-13T18:15:00Z",
"github_reviewed_at": "2022-04-26T13:05:37Z",
"severity": "MODERATE",
"cwe_ids": [
"CWE-400",
"CWE-770"
]
}