{"id":"UBUNTU-CVE-2025-3839","details":"A flaw was found in Epiphany, a tool that allows websites to open external URL handler applications with minimal user interaction. This design can be misused to exploit vulnerabilities within those handlers, making them appear remotely exploitable. The browser fails to properly warn or gate this action, resulting in potential code execution on the client device via trusted UI behavior.","modified":"2026-01-30T20:34:53.412114Z","published":"2026-01-23T05:16:00Z","upstream":["CVE-2025-3839"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-3839"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-3839"}],"affected":[{"package":{"name":"epiphany-browser","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/epiphany-browser@3.18.11-0ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.16.3-1ubuntu1","3.18.0-1ubuntu2","3.18.1-1ubuntu1","3.18.3-0ubuntu1","3.18.5-0ubuntu1","3.18.5-0ubuntu1.1","3.18.10-0ubuntu1","3.18.11-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"epiphany-browser","binary_version":"3.18.11-0ubuntu1"},{"binary_version":"3.18.11-0ubuntu1","binary_name":"epiphany-browser-data"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-3839.json"}},{"package":{"name":"epiphany-browser","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/epiphany-browser@3.28.6-0ubuntu1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.26.1-1ubuntu1","3.26.1-1ubuntu2","3.26.1-1ubuntu4","3.26.5.1-1ubuntu1","3.27.90-1ubuntu1","3.28.0.1-1ubuntu1","3.28.1-1ubuntu1","3.28.5-0ubuntu1","3.28.6-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"epiphany-browser","binary_version":"3.28.6-0ubuntu1"},{"binary_name":"epiphany-browser-data","binary_version":"3.28.6-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-3839.json"}},{"package":{"name":"epiphany-browser","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/epiphany-browser@3.36.4-0ubuntu2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.34.1-1","3.34.1-1build1","3.36.0-1","3.36.1-1","3.36.2-0ubuntu1","3.36.3-0ubuntu1","3.36.4-0ubuntu1","3.36.4-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"epiphany-browser","binary_version":"3.36.4-0ubuntu2"},{"binary_name":"epiphany-browser-data","binary_version":"3.36.4-0ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-3839.json"}},{"package":{"name":"epiphany-browser","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/epiphany-browser@42.4-0ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["41.0-1","41.0-2","41.2-1","41.3-1","42~beta-1","42.0-1","42.1-1","42.1-1ubuntu1","42.4-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"epiphany-browser","binary_version":"42.4-0ubuntu1"},{"binary_version":"42.4-0ubuntu1","binary_name":"epiphany-browser-data"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-3839.json"}},{"package":{"name":"epiphany-browser","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/epiphany-browser@46.5-0ubuntu1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["45.0-1","45.1-1","46~alpha-1","46~beta-1","46.0-1","46.0-2build1","46.5-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"epiphany-browser","binary_version":"46.5-0ubuntu1"},{"binary_name":"epiphany-browser-data","binary_version":"46.5-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-3839.json"}},{"package":{"name":"epiphany-browser","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/epiphany-browser@48.5-3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["48.0-1","48.3-1","48.3-2","48.3-2build1","48.5-1","48.5-3"],"ecosystem_specific":{"binaries":[{"binary_version":"48.5-3","binary_name":"epiphany-browser"},{"binary_version":"48.5-3","binary_name":"epiphany-browser-data"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-3839.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}