CVE-2026-6346
High · 8.7CVSS
8.7
EPSS
0.4%
Published
May 18, 2026
CISA due date
—
The record
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to sanitize sensitive configuration fields before including them in support packet generation, which allows a Mattermost System Admin or any party with access to a support packet to obtain sensitive credentials in plaintext via downloading a support packet from the System Console.. Mattermost Advisory ID: MMSA-2026-00607
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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