{"id":"CVE-2026-1628","details":"Mattermost Desktop App versions \u003c=5.13.3 fail to attach listeners restricting navigation to external sites within the Mattermost app which allows a malicious server to expose preload script functionality to untrusted servers via having a user open an external link in their Mattermost server. Mattermost Advisory ID: MMSA-2026-00596","modified":"2026-04-10T05:38:05.124622Z","published":"2026-03-02T14:16:23.223Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/desktop","events":[{"introduced":"0"},{"fixed":"1d0a3d770e85fd31fc758f880cdc3a74e7d39a34"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"5.13.4"}]}}],"versions":["4.7.0-beta","beta2","v0.1.0","v0.2.0","v0.3.0","v0.4.0","v0.5.0","v0.5.1","v1.0.0","v1.0.1","v1.0.2","v1.0.3","v1.0.4","v1.0.5","v1.0.6","v1.0.7","v1.1.0","v1.1.1","v1.2.0","v1.3.0","v1.3.0-rc1","v1.3.0-rc2","v4.7.0-beta2","v5.13.0","v5.13.0-mas.1","v5.13.0-rc.1","v5.13.1","v5.13.1-mas.1","v5.13.1-rc.1","v5.13.1-rc.2","v5.13.2","v5.13.2-mas.1","v5.13.2-rc.1","v5.13.3","v5.13.3-rc.1","v5.13.4-rc.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1628.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"}]}