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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Roundcube | Webmail | unaffected |
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Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Thu, 22 Oct 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| First Time appeared |
Roundcube
Roundcube webmail |
|
| Weaknesses | CWE-93 | |
| CPEs | cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Roundcube
Roundcube webmail |
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| References |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-10-22T01:32:44.426Z
Reserved: 2026-10-22T01:32:44.065Z
Link: CVE-2026-114720
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses