PT-2026-41659 · Mattermost · Mattermost

Eeshan

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CVE-2026-6345

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Published

2026-05-18

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Updated

2026-07-30

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Mattermost version 11.5.1 Mattermost version 10.11.13 Mattermost version 11.4.3
Description An issue exists where the software fails to prevent the disclosure of created user passwords. This allows a malicious attacker to impersonate users by utilizing these passwords.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Insufficiently Protected Credentials

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Weakness Enumeration

CWE-522

Related Identifiers

CVE-2026-6345
GHSA-WVGV-4FC3-2RCP
GO-2026-5727
OPENSUSE-SU-2026:21483-1

Affected Products

Mattermost