Upstream information

CVE-2026-0818 at MITRE

Description

CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail SUSE
Base Score 3.1
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 2.3
Vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity High
Attack Requirements Present
Privileges Required None
User Interaction Passive
Vulnerable System Confidentiality Impact Low
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1257397 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 MozillaThunderbird Affected
SUSE Linux Enterprise Module for Package Hub 15 SP5 MozillaThunderbird Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6 MozillaThunderbird Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP7 MozillaThunderbird Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 MozillaThunderbird Affected
SUSE Linux Enterprise Workstation Extension 15 SP7 MozillaThunderbird Affected
openSUSE Leap 15.6 MozillaThunderbird Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Server 15 SP4 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP5 MozillaThunderbird Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 MozillaThunderbird Affected
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise Desktop 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Desktop 15 SP3 MozillaThunderbird Affected
SUSE Linux Enterprise Desktop 15 SP4 MozillaThunderbird Affected
SUSE Linux Enterprise Desktop 15 SP5 MozillaThunderbird Affected
SUSE Linux Enterprise Desktop 15 SP6 MozillaThunderbird Affected
SUSE Linux Enterprise Module for Package Hub 15 SP3 MozillaThunderbird Affected
SUSE Linux Enterprise Module for Package Hub 15 SP4 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP3 MozillaThunderbird Affected
SUSE Linux Enterprise Server 15 SP6 MozillaThunderbird Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 MozillaThunderbird Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 MozillaThunderbird Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 MozillaThunderbird Affected
SUSE Linux Enterprise Workstation Extension 15 SP2 MozillaThunderbird Affected
SUSE Linux Enterprise Workstation Extension 15 SP3 MozillaThunderbird Affected
SUSE Linux Enterprise Workstation Extension 15 SP4 MozillaThunderbird Affected
SUSE Linux Enterprise Workstation Extension 15 SP5 MozillaThunderbird Affected
SUSE Linux Enterprise Workstation Extension 15 SP6 MozillaThunderbird Affected
openSUSE Leap 15.3 MozillaThunderbird Affected
openSUSE Leap 15.4 MozillaThunderbird Affected
openSUSE Leap 15.5 MozillaThunderbird Affected


SUSE Timeline for this CVE

CVE page created: Wed Jan 28 10:03:03 2026
CVE page last modified: Wed Jan 28 14:59:38 2026