Description
Mattermost versions 9.8.x <= 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2 and 9.5.x <= 9.5.5, when shared channels are enabled, fail to use constant time comparison for remote cluster tokens which allows an attacker to retrieve the remote cluster token via a timing attack during remote cluster token comparison.
References (1)
Scores
CVSS v3
8.1
EPSS
0.0034
EPSS Percentile
56.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-287
CWE-203
Status
published
Products (1)
mattermost/mattermost
9.5.0 - 9.5.6
Published
Jul 03, 2024
Tracked Since
Feb 18, 2026