HIGHCVSS v3.1 7.1Vulnerability
CVE-2026-114720
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 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.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Epss score
- 0.00805
- Cvss severity
- HIGH
- Cvss score
- 7.1
- Retrieved at
- 2026-10-22T22:17:33+00:00
- Last source
- FIRST EPSS
- Score
- 7.1
- Cvss version
- 3.1
- Cve id
- CVE-2026-114720
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
- First seen by Signal
- 2026-10-22T06:03:26+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
- Published at
- 2026-10-22T02:16:59.717
- Last modified
- 2026-10-22T16:45:49.550
- Epss percentile
- 0.56331
Related Entities (1)
HAS_WEAKNESS (1)
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