CVE-2026-14298: Improper Handling of Highly Compressed Data (Data Amplification)

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit decompressed content size and enforce the configured maximum file size in the Boards archive import handler, which allows an authenticated user to cause memory exhaustion or unbounded disk...

Unbounded Disk Consumption

github.com/t2bot/matrix-media-repo is vulnerable to Unbounded Disk Consumption. The vulnerability is MMR's lack of proper rate limiting and controls on the amount of data that can be requested and cached, allowing unauthenticated users to request excessive amounts of remote media files...

CVE-2024-36403

Matrix Media Repo MMR is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 is vulnerable to unbounded disk consumption, where an unauthenticated adversary can induce it to download and cache large amounts of remote media files. MMR's typical operating...

CVE-2024-36403 Denial of service/high operating costs through unauthenticated downloads in Matrix Media Repo

Matrix Media Repo MMR is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 is vulnerable to unbounded disk consumption, where an unauthenticated adversary can induce it to download and cache large amounts of remote media files. MMR's typical operating...

CVE-2024-36403: Allocation of Resources Without Limits or Throttling

Matrix Media Repo MMR is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 is vulnerable to unbounded disk consumption, where an unauthenticated adversary can induce it to download and cache large amounts of remote media files. MMR's typical operating...