CVE-2025-41410
Mattermost versions 10.10.x <= 10.10.2, 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to validate email ownership during Slack import process which allows attackers to create verified user accounts with arbitrary email domains via malicious Slack import data to bypass email-based team access restrictions
- CVSS 3.1
- 5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-25)
- CWE
- CWE-862
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3q4q-wqm6-hvf3 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250822083415-01b95392a450 | 8.0.0-20250822083415-01b95392a450 |
| GHSA-3q4q-wqm6-hvf3 | Go | github.com/mattermost/mattermost-server | >=10.10.0 <10.10.3 | 10.10.3 |
| GHSA-3q4q-wqm6-hvf3 | Go | github.com/mattermost/mattermost-server | >=10.5.0 <10.5.11 | 10.5.11 |
| GHSA-3q4q-wqm6-hvf3 | Go | github.com/mattermost/mattermost-server | >=10.11.0 <10.11.3 | 10.11.3 |
| GO-2025-4029 | Go | github.com/mattermost/mattermost-server | >=10.5.0+incompatible <10.5.11+incompatible >=10.10.0+incompatible <10.10.3+incompatible >=10.11.0+incompatible <10.11.3+incompatible | 10.5.11+incompatible, 10.10.3+incompatible, 10.11.3+incompatible |
| GO-2025-4029 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-4029 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-4029 | Go | github.com/mattermost/mattermost/server/v8 | all versions | no fix published |