Threats tagged 'ghsa-w44p-jxhf-26w5'

Mattermost versions 11.7.x through 11.10.x (up to specified patch levels) contain a vulnerability in the WebSocket msgpack decoder where allocation limits are not properly enforced. This flaw allows an authenticated remote attacker to cause excessive server memory allocation by sending a crafted binary WebSocket frame with a large declared Bin32 payload length. The issue leads to a denial-of-service condition due to resource exhaustion.