Denial of Service via specially crafted block fields in Mattermost Boards

CVE-2023-40703

What is CVE-2023-40703?

The Mattermost Boards service has a vulnerability that allows an attacker to bypass character limitations in certain fields. By utilizing specially crafted strings, an attacker can exploit this flaw to consume excessive system resources, potentially leading to a Denial of Service scenario. This vulnerability emphasizes the need for proper input validation and resource management to prevent application disruptions.

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