{"id":"CVE-2026-114720","title":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an IMAP command injection vulnerability","summary":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an IMAP command injection vulnerability. A remote authenticated attacker can exploit this via CRLF sequences injected into the _flag parameter of the mail/mark action …","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N","cvssSource":"cna","cwe":["CWE-93"],"vendor":"Roundcube","product":"Webmail","affected":["Webmail >= 1.6.0 < 1.6.20","Webmail >= 1.7.0 < 1.7.5"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T01:32:44.426Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114720","references":[{"url":"https://bugs.debian.org/1151279"},{"url":"https://github.com/roundcube/roundcubemail/commit/6c3c1897c11e193e47fccaabc87e9ca2a0a73e51"},{"url":"https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5"},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7.5"},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.20"},{"url":"https://github.com/roundcube/roundcubemail/commit/242c6d6a150c850bd96d20d400261e71f8d11f9b"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T02:23:25.187Z","slug":"CVE-2026-114720","body":"## Overview\n\nRoundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an IMAP command injection vulnerability. A remote authenticated attacker can exploit this via CRLF sequences injected into the _flag parameter of the mail/mark action to execute arbitrary IMAP commands. Upstream fixed this in the commit “Fix IMAP command injection via CRLF in `_flag` parameter of mail/mark action”, which rejects flags containing control, whitespace and IMAP-special characters.\n\n## Affected\n\n- `Webmail >= 1.6.0 < 1.6.20`\n- `Webmail >= 1.7.0 < 1.7.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}