CVE-2026-75025

Summary

Mattermost Desktop App versions <=6.2 6.2.2.0 Fixed an issue where Mattermost Desktop did not sufficiently restrict server-rendered content from accessing local or private network resources. Thanks to game0v3r for contributing to this improvement under the Mattermost responsible disclosure policy. Mattermost Advisory ID: MMSA-2026-00698

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost0 <= 6.2.2affected
MattermostMattermost6.3.0unaffected
MattermostMattermost6.2.3.0unaffected

Weaknesses

  • CWE-346: CWE-346: Origin Validation Error

References