Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.
{ "nvd_published_at": "2025-01-16T19:15:29Z", "cwe_ids": [ "CWE-1287" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2025-01-16T23:09:09Z" }