CVE-2025-49222

Description

Mattermost Fails to Validate Remote Cluster Upload Sessions in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.0.0-20250708173752-d6b35c41f0ae5.

Affected packages (8)

• Go/github.com/mattermost/mattermost-server>= 10.8.0, < 10.8.4
• Go/github.com/mattermost/mattermost-server>= 9.11.0+incompatible, < 9.11.18+incompatible, >= 10.5.0+incompatible, < 10.5.9+incompatible, >= 10.8.0+incompatible, < 10.8.4+incompatible, >= 10.9.0+incompatible, < 10.9.3+incompatible, >= 10.10.0+incompatible, < 10.10.1+incompatible
• Go/github.com/mattermost/mattermost-server/v5from 0
• Go/github.com/mattermost/mattermost-server/v5from 0, <= 5.39.3
• Go/github.com/mattermost/mattermost-server/v6from 0, <= 5.7.2
• Go/github.com/mattermost/mattermost-server/v6from 0
• Go/github.com/mattermost/mattermost/server/v8from 0, < 8.0.0-20250708173752-d6b35c41f0ae5
• Go/github.com/mattermost/mattermost/server/v8from 0

CVSS scores

References (5)

• ADVISORYhttps://github.com/advisories/GHSA-q453-638c-h4mr
• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-49222
• PATCHhttps://github.com/mattermost/mattermost
• WEBhttps://mattermost.com/security-updates
• WEBhttps://pkg.go.dev/vuln/GO-2025-3904