CVE-2026-2461

Mattermost Plugins versions =11.3 11.0.3 11.2.2 10.10.11.0 fail to implement authorisation checks on comment block modifications, which allows an authorised attacker with editor permission to modify comments created by other board members. Mattermost Advisory ID: MMSA-2025-00559...

Denial Of Service (DoS)

SixLabors.ImageSharp is vulnerable to Denial Of Service DoS. The vulnerability is due to improper handling of malformed GIF comment extension blocks due to a missing block terminator, causing the GIF decoder to enter an infinite loop when processing specially crafted files...