{"schemaVersion":3,"id":"CVE-2026-113386","aliases":["DEBIAN-CVE-2026-113386"],"status":"published","duplicateOf":null,"title":null,"description":"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 actions to execute arbitrary IMAP commands.","dates":{"published":"2026-10-20T04:53:46.220Z","modified":"2026-10-20T04:53:46.220Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00972,"percentile":0.61572,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-20T00:00:00.000Z","score":0.00972,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00972,"percentile":0.61572}],"last30":[{"date":"2026-10-20T00:00:00.000Z","score":0.00972,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00972,"percentile":0.61572}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-93","name":"Improper Neutralization of CRLF Sequences ('CRLF Injection')","description":"The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/93.html"}],"affected":[{"vendor":"debian","product":"roundcube","name":"roundcube","label":"roundcube","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/roundcube","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"roundcube","product":"webmail","name":"Webmail","label":"webmail","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.6.0, < 1.6.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 1.7.0, < 1.7.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.6.0, < 1.6.20 | ≥ 1.7.0, < 1.7.5","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"roundcube","label":"Roundcube Webmail","category":"server-app"}},"hubHref":"/vendor/roundcube/webmail"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://bugs.debian.org/1151279","label":"bugs.debian.org/1151279","hostname":"bugs.debian.org","tags":["Issue Tracking","Third Party Advisory"]},{"url":"https://github.com/roundcube/roundcubemail/commit/004adaaeca4f6799715a54d12e3f657f19efcc9a","label":"github.com/roundcube/roundcubemail/commit/004adaaeca4f6799715a54d12e3f657f19efcc9a","hostname":"github.com","tags":["Patch"]},{"url":"https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5","label":"roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5","hostname":"roundcube.net","tags":["Vendor Advisory","Release Notes"]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7.5","label":"github.com/roundcube/roundcubemail/releases/tag/1.7.5","hostname":"github.com","tags":["Release Notes","Patch"]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.20","label":"github.com/roundcube/roundcubemail/releases/tag/1.6.20","hostname":"github.com","tags":["Release Notes","Patch"]},{"url":"https://github.com/roundcube/roundcubemail/commit/f62879defc0330ae240c72b83b2d00a8ab337447","label":"github.com/roundcube/roundcubemail/commit/f62879defc0330ae240c72b83b2d00a8ab337447","hostname":"github.com","tags":["Patch"]},{"url":"https://github.com/roundcube/roundcubemail/commit/bf5bc0266a8cd16be6b640409e64a6c6c2705049","label":"github.com/roundcube/roundcubemail/commit/bf5bc0266a8cd16be6b640409e64a6c6c2705049","hostname":"github.com","tags":["Patch"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-113386","label":"security-tracker.debian.org/tracker/CVE-2026-113386","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-20T04:53:46.220Z","label":"Published","detail":"Vulnerability first disclosed.","source":null}],"risk":{"score":29,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T16:06:35.086Z","stale":false,"partial":false}}