CVE-2026-3524

CVSS Score & Metrics

Base Score

8.8 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H                                    

Vulnerability Description

Mattermost Plugin Legal Hold versions <=1.1.4 fail to halt request processing after a failed authorization check in ServeHTTP which allows an authenticated attacker to access, create, download, and delete legal hold data via crafted API requests to the plugin's endpoints. Mattermost Advisory ID: MMSA-2026-00621

Vulnerability Details

Published Date

April 06, 2026

Last Modified

April 07, 2026

CWE ID

CWE-862

Source

NVD

External References

https://mattermost.com/security-updates

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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