CVE-2026-35542
Detail
Description
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.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Base
Score:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0 Severity and Vector Strings:
Base
Score:
NVD assessment
not yet provided.
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Weakness Enumeration
| CWE-ID |
CWE Name |
Source |
|
CWE-669
|
Incorrect Resource Transfer Between Spheres |
MITRE
|
Change History
4 change records found show changes
CVE Modified by CISA-ADP
6/17/2026 6:40:44 AM
| Action |
Type |
Old Value |
New Value |
| Added |
SSVC |
{"timestamp":"2026-04-03T12:51:19.903148Z","id":"CVE-2026-35542","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
|
CVE Modified by MITRE
6/17/2026 6:40:44 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Affected |
[{"vendor":"Roundcube","product":"Webmail","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"1.5.14","versionType":"semver","status":"affected"},{"version":"1.6.0","lessThan":"1.6.14","versionType":"semver","status":"affected"}]}]
|
Initial Analysis by NIST
4/07/2026 4:41:01 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
OR
*cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* versions up to (excluding) 1.5.14
*cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* versions from (including) 1.6.0 up to (excluding) 1.6.14
|
| Added |
Reference Type |
MITRE: https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad Types: Patch
|
| Added |
Reference Type |
MITRE: https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0 Types: Patch
|
| Added |
Reference Type |
MITRE: https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8 Types: Patch
|
| Added |
Reference Type |
MITRE: https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 Types: Release Notes
|
| Added |
Reference Type |
MITRE: https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 Types: Release Notes
|
| Added |
Reference Type |
MITRE: https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 Types: Release Notes
|
| Added |
Reference Type |
MITRE: https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 Types: Vendor Advisory
|
New CVE Received from MITRE
4/03/2026 1:16:22 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Description |
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.
|
| Added |
CVSS V3.1 |
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
|
| Added |
CWE |
CWE-669
|
| Added |
Reference |
https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad
|
| Added |
Reference |
https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0
|
| Added |
Reference |
https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8
|
| Added |
Reference |
https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
|
| Added |
Reference |
https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
|
| Added |
Reference |
https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
|
| Added |
Reference |
https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
|
Quick Info
CVE Dictionary Entry: CVE-2026-35542 NVD
Published Date: 04/03/2026 NVD
Last Modified: 06/17/2026
Source: MITRE
|
