CVE-2026-35542

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-35542
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted background attribute of a BODY element in an e-mail message. This may lead to information disclosure or access-control bypass.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad Patch
https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0 Patch
https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8 Patch
https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 Release Notes
https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
History

07 Apr 2026, 20:41

Type Values Removed Values Added
References () https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad - () https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad - Patch
References () https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0 - () https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0 - Patch
References () https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8 - () https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8 - Patch
References () https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 - () https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 - Release Notes
References () https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 - () https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 - Release Notes
References () https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 - () https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 - Release Notes
References () https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 - () https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 - Vendor Advisory
CPE cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
First Time Roundcube
Roundcube webmail

03 Apr 2026, 05:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-03 05:16

Updated : 2026-04-07 20:41

NVD link : CVE-2026-35542

Mitre link : CVE-2026-35542

CVE.ORG link : CVE-2026-35542

JSON object : View

Products Affected

roundcube

  • webmail
CWE
CWE-669

Incorrect Resource Transfer Between Spheres