Known Vulnerabilities for Mattermost Server by Mattermost

Listed below are 10 of the newest known vulnerabilities associated with "Mattermost Server" 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-2026-75587 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-2026-71366 json A server-side request forgery (SSRF) vulnerability was found in multiple AWX notification backends. The webhook, Mattermost, ... Not Provided 2026-08-24 2026-08-26
CVE-2026-28759 json Not Provided 2026-05-18 2026-05-18
CVE-2026-28741 json Not Provided 2026-04-15 2026-04-22
CVE-2026-28735 json Not Provided 2026-05-22 2026-07-23
CVE-2026-28732 json Not Provided 2026-05-18 2026-05-19
CVE-2026-27769 json Not Provided 2026-04-15 2026-04-22
CVE-2026-21388 json Not Provided 2026-04-09 2026-04-25
CVE-2026-16048 json Not Provided 2026-08-17 2026-08-18
CVE-2026-16047 json Not Provided 2026-08-17 2026-08-18
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationMattermostMattermost Server5.9.8
ApplicationMattermostMattermost Server5.9.8
ApplicationMattermostMattermost Server5.9.7
ApplicationMattermostMattermost Server5.9.7
ApplicationMattermostMattermost Server5.9.6
ApplicationMattermostMattermost Server5.9.6
ApplicationMattermostMattermost Server5.9.5
ApplicationMattermostMattermost Server5.9.5
ApplicationMattermostMattermost Server5.9.4
ApplicationMattermostMattermost Server5.9.4
ApplicationMattermostMattermost Server5.9.3
ApplicationMattermostMattermost Server5.9.3
ApplicationMattermostMattermost Server5.9.2
ApplicationMattermostMattermost Server5.9.2
ApplicationMattermostMattermost Server5.9.1
ApplicationMattermostMattermost Server5.9.1
ApplicationMattermostMattermost Server5.9.0
ApplicationMattermostMattermost Server5.9.0
ApplicationMattermostMattermost Server5.9.0
ApplicationMattermostMattermost Server5.9.0
Results limited to 20 most recent known configurations

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