{"id":"CVE-2025-58084","aliases":["EUVD-2025-34084","GHSA-c8m2-cx6j-jf7p"],"status":"published","title":"Mattermost Desktop App crashes when clicking on malformed external URL","description":"Mattermost Desktop App versions \u003c= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00303,"percentile":0.23298,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1287"],"published":"2025-10-13T19:57:23Z","modified":"2026-10-28T02:31:11Z","products":[{"vendor":"mattermost","product":"mattermost"},{"vendor":"mattermost","product":"mattermost_desktop"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-58084","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c8m2-cx6j-jf7p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58084.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-58084","title":"Mattermost Desktop App crashes when clicking on malformed external URL","description":"Mattermost Desktop App versions \u003c= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.","status":"published","published":"2025-10-13T19:57:23.997Z","modified":"2025-10-14T14:28:52.93Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-1287"],"updated_at":"2026-11-02T14:32:37.027582Z"}],"euvd":[{"id":"EUVD-2025-34084","description":"Mattermost Desktop App versions \u003c= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.","status":"published","published":"2025-10-13T19:57:23Z","modified":"2025-10-14T14:28:52Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T20:31:33.01309Z"}],"ghsa":[{"id":"GHSA-c8m2-cx6j-jf7p","title":"Mattermost Desktop App versions \u003c= 5.13.0 fail to validate URLs external to the configured...","description":"Mattermost Desktop App versions \u003c= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.","status":"published","published":"2025-10-13T21:31:10Z","modified":"2025-10-13T21:31:10Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-1287"],"updated_at":"2026-11-02T15:03:56.92957Z"}],"nvd":[{"id":"CVE-2025-58084","description":"Mattermost Desktop App versions \u003c= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.","status":"published","published":"2025-10-13T20:15:33.937Z","modified":"2026-10-19T16:10:00.26Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-1287"],"updated_at":"2026-11-02T14:11:36.851295Z"}],"osv":[{"id":"CVE-2025-58084","title":"Mattermost Desktop App crashes when clicking on malformed external URL","description":"Mattermost Desktop App versions \u003c= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.","status":"published","published":"2025-10-13T19:57:23.997Z","modified":"2026-10-28T02:31:11.252029678Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-1287"],"updated_at":"2026-11-02T15:44:51.190588Z"}]}}