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openSUSE Leap 15.5 Tigervnc Vital Screen Privacy Update CVE-2026

Linuxsecurity •LinuxSecurity Advisories • April 14, 2026

This update for tigervnc fixes the following issues: * CVE-2026-34352: Fixed permissions to prevent other users from observing the screen, or modifying what is sent to the client. (bsc#1260871)

## 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: * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1302=1 * SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1302=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1302=1 * openSUSE Leap 15.5 zypper in -t patch SUSE-2026-1302=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1302=1

## 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:

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1302=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1302=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1302=1

zypper in -t patch SUSE-2026-1302=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1302=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) * tigervnc-debugsource-1.12.0-150500.4.3.1 * tigervnc-1.12.0-150500.4.3.1 * libXvnc-devel-1.12.0-150500.4.3.1 * xorg-x11-Xvnc-module-1.12.0-150500.4.3.1 * libXvnc1-debuginfo-1.12.0-150500.4.3.1 * libXvnc1-1.12.0-150500.4.3.1 * xorg-x11-Xvnc-module-debuginfo-1.12.0-150500.4.3.1 * xorg-x11-Xvnc-debuginfo-1.12.0-150500.4.3.1 * tigervnc-debuginfo-1.12.0-150500.4.3.1 * xorg-x11-Xvnc-1.12.0-150500.4.3.1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch) * xorg-x11-Xvnc-novnc-1.12.0-150500.4.3.1 * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) * tigervnc-debugsource-1.12.0-150500.4.3.1 * tigervnc-1.12.0-150500.4.3.1 * libXvnc-devel-1.12.0-150500.4.3.1 * libXvnc1-debuginfo-1.12.0-150500.4.3.1 * libXvnc1-1.12.0-150500.4.3.1 * xorg-x11-Xvnc-debuginfo-1.12.0-150500.4.3.1 * Read the Full Advisory

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64

* tigervnc-debugsource-1.12.0-150500.4.3.1

* tigervnc-1.12.0-150500.4.3.1

* libXvnc-devel-1.12.0-150500.4.3.1

* xorg-x11-Xvnc-module-1.12.0-150500.4.3.1

* libXvnc1-debuginfo-1.12.0-150500.4.3.1

* libXvnc1-1.12.0-150500.4.3.1

* xorg-x11-Xvnc-module-debuginfo-1.12.0-150500.4.3.1

* xorg-x11-Xvnc-debuginfo-1.12.0-150500.4.3.1

* tigervnc-debuginfo-1.12.0-150500.4.3.1

* xorg-x11-Xvnc-1.12.0-150500.4.3.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)

* xorg-x11-Xvnc-novnc-1.12.0-150500.4.3.1

* SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)

* tigervnc-debugsource-1.12.0-150500.4.3.1

* tigervnc-1.12.0-150500.4.3.1

* libXvnc-devel-1.12.0-150500.4.3.1

* libXvnc1-debuginfo-1.12.0-150500.4.3.1

* libXvnc1-1.12.0-150500.4.3.1

* xorg-x11-Xvnc-debuginfo-1.12.0-150500.4.3.1

* bsc#1260871 ## References: * *

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Critical Access Control Vulnerability in tigervnc (CVE-2026-34352) Patched A significant vulnerability (CVE-2026-34352) affecting tigervnc has been identified and patched across various SUSE Linux distributions. The flaw allows unauthorized users to observe screens and manipulate data sent to clients, posing a serious security risk. Affected systems include openSUSE Leap 15.4, Leap 15.5, and several versions of SUSE Linux Enterprise Server and High Performance Computing. The vulnerability was published on March 26, 2026, and has been assigned a CVSS score indicating a high severity level. Users are urged to apply the patches immediately using recommended installation methods like YaST or 'zypper patch'. The updates are crucial for maintaining screen privacy and preventing unauthorized access. Multiple articles have reported on this issue, emphasizing the need for prompt action by system administrators. 4 sources 72

Extracted Entities

CVEs (1)

CVE-2026-34352