Known Vulnerabilities for Mattermost Desktop by Mattermost

Listed below are 10 of the newest known vulnerabilities associated with "Mattermost Desktop" by "Mattermost".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-75588 json Mattermost Desktop App versions <=6.2 6.2.2.0 fail to validate the URL scheme when checking whether a target URL is internal ... Not Provided 2026-09-17 2026-09-17
CVE-2026-75587 json Mattermost Desktop App versions <=6.2 6.2.2.0 fail to redact the pre-auth secret when generating a diagnostics report, which ... Not Provided 2026-08-17 2026-08-18
CVE-2026-75025 json Mattermost Desktop App versions <=6.2 6.2.2.0 Fixed an issue where Mattermost Desktop did not sufficiently restrict server-re... Not Provided 2026-09-16 2026-09-17
CVE-2026-12284 json Mattermost Desktop App versions <=6.2 6.2.2.0 fails to validate the IPC sender in the leaveCall handler which allows a malici... Not Provided 2026-09-17 2026-09-17
CVE-2026-9602 json Mattermost Desktop App versions <=6.2 6.0.2 5.6.13.0 fail to validate payloads sent from the Mattermost Web App to the Deskto... Not Provided 2026-07-17 2026-07-17
CVE-2026-8683 json Not Provided 2026-06-15 2026-06-16
CVE-2026-8075 json Mattermost Desktop App versions <=6.2 5.5.13 6.0.2.0 fail to properly null check when checking for headers in the Mattermost ... Not Provided 2026-07-17 2026-07-17
CVE-2026-6517 json Not Provided 2026-06-15 2026-06-16
CVE-2026-4643 json Not Provided 2026-05-18 2026-06-05
CVE-2026-3471 json Not Provided 2026-05-18 2026-06-05
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationMattermostMattermost Desktop4.4.0
ApplicationMattermostMattermost Desktop4.3.0
ApplicationMattermostMattermost Desktop4.2.2
ApplicationMattermostMattermost Desktop4.0.0
ApplicationMattermostMattermost Desktop3.4.0

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