openSUSE 15.6 MozillaThunderbird Important CSS Exfiltration 2026-0388

## This update for MozillaThunderbird fixes the following issues: Update to Mozilla Thunderbird 140.7.1 MFSA 2026-08 (bsc#1257397): * CVE-2026-0818: CSS-based exfiltration of the content from partially encrypted emails when allowing remote content ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.6 zypper in -t patch openSUSE-SLE-15.6-2026-388=1 * SUSE Package Hub 15 15-SP7 zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-388=1 * SUSE Linux Enterprise Workstation Extension 15 SP7 zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-388=1 ## Package List: * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64) Read the Full Advisory

## This update for MozillaThunderbird fixes the following issues: Update to Mozilla Thunderbird 140.7.1 MFSA 2026-08 (bsc#1257397): * CVE-2026-0818: CSS-based exfiltration of the content from partially encrypted emails when allowing remote content ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.6 zypper in -t patch openSUSE-SLE-15.6-2026-388=1 * SUSE Package Hub 15 15-SP7 zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-388=1 * SUSE Linux Enterprise Workstation Extension 15 SP7 zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-388=1 ## Package List: * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64) Read the Full Advisory

* bsc#1257397 Cross- * CVE-2026-0818 CVSS scores: * CVE-2026-0818 ( SUSE ): 2.3 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 * CVE-2026-0818 ( SUSE ): 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N * CVE-2026-0818 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 * SUSE Linux Enterprise Workstation Extension 15 SP7 * SUSE Package Hub 15 15-SP7 An update that solves one vulnerability can now be installed. ## * *

* CVE-2026-0818 ( SUSE ): 2.3

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

* CVE-2026-0818 ( SUSE ): 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

* CVE-2026-0818 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP7

* SUSE Linux Enterprise Server for SAP Applications 15 SP7

* SUSE Linux Enterprise Workstation Extension 15 SP7

* SUSE Package Hub 15 15-SP7

An update that solves one vulnerability can now be installed.

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