CVE-2026-113386

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-113386
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-20 05:16:54 UTC
Updated2026-10-20 20:06:37 UTC
DescriptionRoundcube 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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

EPSS: 0.009720000 probability, percentile 0.613920000 (date 2026-10-20)

Problem Types: CWE-93 | CWE-93 CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
3.1CNACVSS7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Roundcube Webmail affected 1.6.0 1.6.20 semver Not specified
CNA Roundcube Webmail affected 1.7.0 1.7.5 semver Not specified

References

ReferenceSourceLinkTags
github.com/roundcube/roundcubemail/commit/004adaaeca4f6799715a54d12e3f65... [email protected] github.com
github.com/roundcube/roundcubemail/commit/bf5bc0266a8cd16be6b640409e64a6... [email protected] github.com
roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 [email protected] roundcube.net
bugs.debian.org/1151279 [email protected] bugs.debian.org
github.com/roundcube/roundcubemail/commit/f62879defc0330ae240c72b83b2d00... [email protected] github.com
github.com/roundcube/roundcubemail/releases/tag/1.7.5 [email protected] github.com
github.com/roundcube/roundcubemail/releases/tag/1.6.20 [email protected] github.com
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