Executive brief
Mattermost doesn't set permissions on downloaded bulk export in github.com/mattermost/mattermost-server
Affected products
- Go github.com/mattermost/mattermost-server
Junglewise Threat Intelligence
CVE-2026-3113: GO-2026-5112 - Mattermost doesn't set permissions on downloaded bulk export in github.com/mattermost/mattermost-server
CVE-2026-3113 · Severity: low · CVSS 3.1 · Published 2026-06-25
Technologies: github.com/mattermost/mattermost-server (Go). Vendors: Go.
Related threats
- GO-2026-5663 - Mattermost doesn't validate decompressed archive entry sizes during file extraction in github.com/mattermost/mattermost-server
- GO-2026-5512 - Mattermost allows authenticated guest users to enumerate user IDs outside their allowed visibility scope in github.com/mattermost/mattermost
- GO-2026-5629 - Mattermost doesn't properly validate CSRF tokens in github.com/mattermost/mattermost-server
- GO-2026-5495 - Mattermost doesn't validate CSRF tokens on an authentication endpoint in github.com/mattermost/mattermost-server
- GO-2026-5360 - Mattermost allows attackers to take over arbitrary user accounts via overly permissive substring matching flaw in github.com/mattermost/matt