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.
{ "nvd_published_at": "2022-04-13T18:15:00Z", "cwe_ids": [ "CWE-400", "CWE-770" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2022-04-26T13:05:37Z" }