CVE-2026-35541 | Roundcube Webmail up to 1.5.13/1.6.13 Password Plugin type confusion

VDB-355064 · CVE-2026-35541 · GCVE-0-2026-35541 ROUNDCUBE WEBMAIL UP TO 1.5.13/1.6.13 PASSWORD PLUGIN TYPE CONFUSION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.5 $0-$5k 1.32+ Summaryinfo A vulnerability labeled as problematic has been found in Roundcube Webmail up to 1.5.13/1.6.13. The affected element is an unknown function of the component Password Plugin. Such manipulation leads to type confusion. This vulnerability is traded as CVE-2026-35541. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded. Detailsinfo A vulnerability was found in Roundcube Webmail up to 1.5.13/1.6.13 and classified as problematic. Affected by this issue is an unknown part of the component Password Plugin. The manipulation with an unknown input leads to a type confusion vulnerability. Using CWE to declare the problem leads to CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. Impacted is confidentiality, integrity, and availability. CVE summarizes: An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password. The advisory is shared for download at roundcube.net. This vulnerability is handled as CVE-2026-35541 since 04/03/2026. The exploitation is known to be difficult. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. Upgrading to version 1.5.14 or 1.6.14 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 2e6a99b2a38110907ea8d3be8e59ec3d5802c394 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Type Mail Client Software Vendor Roundcube Name Webmail Version 1.5.0 1.5.1 1.5.2 1.5.3 1.5.4 1.5.5 1.5.6 1.5.7 1.5.8 1.5.9 1.5.10 1.5.11 1.5.12 1.5.13 1.6.0 1.6.1 1.6.2 1.6.3 1.6.4 1.6.5 1.6.6 1.6.7 1.6.8 1.6.9 1.6.10 1.6.11 1.6.12 1.6.13 License free CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.6 VulDB Meta Temp Score: 4.5 VulDB Base Score: 5.0 VulDB Temp Score: 4.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.2 CNA Vector (MITRE): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Type confusion CWE: CWE-843 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Webmail 1.5.14/1.6.14 Patch: 2e6a99b2a38110907ea8d3be8e59ec3d5802c394 Timelineinfo 04/03/2026 Advisory disclosed 04/03/2026 +0 days CVE reserved 04/03/2026 +0 days VulDB entry created 04/03/2026 +0 days VulDB entry last update Sourcesinfo Advisory: roundcube.net Status: Confirmed CVE: CVE-2026-35541 (🔒) GCVE (CVE): GCVE-0-2026-35541 GCVE (VulDB): GCVE-100-355064 Entryinfo Created: 04/03/2026 07:48 Changes: 04/03/2026 07:48 (67) Complete: 🔍 Cache ID: 99:4AE:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸