Vulnerability Database

299,751

Total vulnerabilities in the database

CVE-2025-8402

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature.

Published: Aug 21, 2025
Updated: Aug 23, 2025
CVE: CVE-2025-8402
GHSA: GHSA-h469-4fcf-p23h
Severity: Medium
Exploit:

CVSS v3:

Severity: Unknown
Score:
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWEs:

CWE-476

Affected Software
References

Software	From	Fixed in
github.com/mattermost/mattermost-server	10.8.0	10.8.4
github.com/mattermost/mattermost-server	10.5.0	10.5.9
github.com/mattermost/mattermost-server	10.9.0	10.9.4
github.com/mattermost/mattermost-server	10.10.0	10.10.0.x
github.com/mattermost/mattermost-server	10.10.0	10.10.1
github.com/mattermost/mattermost/server/v8	-	8.0.0-20250708173752-d6b35c41f0ae5
github.com/mattermost/mattermost-server	9.11.0	9.11.18
github.com/mattermost/mattermost-server/v5	-	5.39.3.x
github.com/mattermost/mattermost-server/v6	-	6.7.2.x

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