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VULNERABILITIES

CVE-2026-75004 Details

Description

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper rule name quoting could lead to managesieve_disabled_actions setting bypass via a crafted rule name in a Sieve script. This issue only affects Roundcube instances using the managesieve plugin.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/roundcube/roundcubemail/releases/tag/1.6.18 [email protected]Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.7.3 [email protected]Release Notes
https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')[email protected]

Affected Products

ProductVersions
roundcube webmail
>= 1.6.0, < 1.6.18
>= 1.7.0, < 1.7.3

CPE

  • cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-75004
NVD Published Date:
Aug 17, 2026
NVD Last Modified:
Sep 8, 2026
Source:
[email protected]
CVE-2026-75004 Details - Not Deferred