{"action":"Upgrade roundcube to 1.6.5+dfsg-1+deb12u11 or later.","affected":[{"fixed":"1.6.5+dfsg-1+deb12u11","introduced":"0"}],"component":"roundcube","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.6.5+dfsg-1+deb12u11"],"id":"tcs_01M5NVC1MWVKRQ3EMPKMCDSBMB","modified_at":"2026-10-01T03:03:41.793846149Z","published_at":"2026-08-17T13:16:54.270Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-74998","https://security-tracker.debian.org/tracker/CVE-2026-74998"],"severity":{"label":"high","score":7.2},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-74998","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-74998"}],"summary":"In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses from the CSS (Cascading Style Sheets) proxy were not validated, which may result in information disclosure or XSS (cross-site scrip"}