{"action":"Upgrade roundcube/roundcubemail to 1.7-rc5 or later.","affected":[{"fixed":"1.7-rc5","introduced":"1.7-beta"}],"component":"roundcube/roundcubemail","cve_ids":["CVE-2026-35539"],"ecosystem":"Packagist","epss":0.00251,"exploited":false,"fixed_versions":["1.7-rc5"],"ghsa_id":"GHSA-x4q5-8j5g-hpjc","id":"tcs_01M5KFAN1J8CHSPP5E4DAKHR0R","modified_at":"2026-04-04T07:11:22.048322Z","published_at":"2026-04-03T06:31:32Z","references":["https://osv.dev/vulnerability/GHSA-x4q5-8j5g-hpjc","https://nvd.nist.gov/vuln/detail/CVE-2026-35539","https://github.com/roundcube/roundcubemail/commit/10a6d1fa8acac85c727b0a6ae4a6642bfa27bea1","https://github.com/roundcube/roundcubemail/commit/1b30edf5369668c92fe91dae3d52e477c808aa4f","https://github.com/roundcube/roundcubemail/commit/d742954ccbcdee7020f8f2e7c49ce0fca5a0efab","https://github.com/roundcube/roundcubemail","https://github.com/roundcube/roundcubemail/releases/tag/1.5.14","https://github.com/roundcube/roundcubemail/releases/tag/1.6.14","https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5","https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"GHSA-x4q5-8j5g-hpjc","url":"https://osv.dev/vulnerability/GHSA-x4q5-8j5g-hpjc"}],"summary":"Roundcube Webmail: Insufficient HTML attachment sanitization in preview mode"}