Description
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.
References (1)
Scores
CVSS v3
4.9
EPSS
0.0012
EPSS Percentile
30.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
CWE-1287
Status
published
Products (5)
mattermost/mattermost
0 - 8.0.0-20250708173752-d6b35c41f0ae5Go
mattermost/mattermost-server
0 (2 CPE variants)Go
mattermost/mattermost-server
10.8.0 - 10.8.4Go
mattermost/mattermost_server
10.10.0
mattermost/mattermost_server
9.11.0 - 9.11.18
Published
Aug 21, 2025
Tracked Since
Feb 18, 2026