CVE-2026-35537

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-35537
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsafe deserialization in the redis/memcache session handler may lead to arbitrary file write operations by unauthenticated attackers via crafted session data.

3.7 /10

CVSS v3 : LOW

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3 Patch
https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74 Patch
https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620 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 Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/04/11/6 Issue Tracking Mailing List
Configurations

Configuration 1 (hide)

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

13 Apr 2026, 17:54

Type Values Removed Values Added
CPE cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
First Time Roundcube
Roundcube webmail
References () https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3 - () https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3 - Patch
References () https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74 - () https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74 - Patch
References () https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620 - () https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620 - 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 - Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2026/04/11/6 - () http://www.openwall.com/lists/oss-security/2026/04/11/6 - Issue Tracking, Mailing List

11 Apr 2026, 15:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/04/11/6 -

03 Apr 2026, 04:17

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-03 04:17

Updated : 2026-04-13 17:54

NVD link : CVE-2026-35537

Mitre link : CVE-2026-35537

CVE.ORG link : CVE-2026-35537

JSON object : View

Products Affected

roundcube

  • webmail
CWE
CWE-502

Deserialization of Untrusted Data