{"id":"CVE-2026-113386","title":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 are affected by IMAP command injection","summary":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 are affected by IMAP command injection. A remote authenticated attacker can exploit this via CRLF sequences injected into the _uid parameter of the mail/headers and mail/viewsource a…","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":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T04:53:46.220Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113386","references":[{"url":"https://bugs.debian.org/1151279"},{"url":"https://github.com/roundcube/roundcubemail/commit/004adaaeca4f6799715a54d12e3f657f19efcc9a"},{"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/f62879defc0330ae240c72b83b2d00a8ab337447"},{"url":"https://github.com/roundcube/roundcubemail/commit/bf5bc0266a8cd16be6b640409e64a6c6c2705049"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T05:53:39.302Z","slug":"CVE-2026-113386","body":"## Overview\n\nRoundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 are affected by IMAP command injection. A remote authenticated attacker can exploit this via CRLF sequences injected into the _uid parameter of the mail/headers and mail/viewsource actions to execute arbitrary IMAP commands.\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":[]}