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openSUSE Leap 15.4 webkit2gtk3 Important Memory Issues Vuln 2026-1150

Linuxsecurity •LinuxSecurity Advisories • March 31, 2026

This update for webkit2gtk3 fixes the following issues: Update to version 2.52.0: * CVE-2023-43010: processing maliciously crafted web content may lead to memory corruption (bsc#1259950). * CVE-2025-31223: processing maliciously crafted web content may lead to memory corruption (bsc#1259949). * CVE-2025-31277: processing maliciously crafted web content may lead to memory corruption (bsc#1259948). * CVE-2025-43213: processing maliciously crafted web content may lead to an unexpected crash (bsc#1259947). * CVE-2025-43214: processing maliciously crafted web content may lead to an unexpected crash (bsc#1259946). * CVE-2025-43433: processing maliciously crafted web content may lead to memory corruption (bsc#1259945). * CVE-2025-43438: processing maliciously crafted web content may lead to an unexpected crash (bsc#1259944). * CVE-2025-43441: processing maliciously crafted web content may lead to an unexpected process crash (bsc#1259943). *

## 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 15.4 zypper in -t patch SUSE-2026-1150=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1150=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1150=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1150=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1150=1 * SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1150=1 * SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch Read the Full Advisory

## 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:

zypper in -t patch SUSE-2026-1150=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1150=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1150=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1150=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1150=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1150=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

* openSUSE Leap 15.4 (noarch) * WebKitGTK-4.1-lang-2.52.0-150400.4.137.3 * WebKitGTK-4.0-lang-2.52.0-150400.4.137.3 * WebKitGTK-6.0-lang-2.52.0-150400.4.137.3 * openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586) * webkitgtk-6_0-injected-bundles-debuginfo-2.52.0-150400.4.137.3 * webkit-jsc-4-debuginfo-2.52.0-150400.4.137.3 * typelib-1_0-JavaScriptCore-4_0-2.52.0-150400.4.137.3 * libjavascriptcoregtk-6_0-1-2.52.0-150400.4.137.3 * webkit-jsc-6.0-2.52.0-150400.4.137.3 * typelib-1_0-JavaScriptCore-4_1-2.52.0-150400.4.137.3 * typelib-1_0-JavaScriptCore-6_0-2.52.0-150400.4.137.3 * libwebkit2gtk-4_1-0-debuginfo-2.52.0-150400.4.137.3 * webkit-jsc-6.0-debuginfo-2.52.0-150400.4.137.3 * libjavascriptcoregtk-4_1-0-2.52.0-150400.4.137.3 * libjavascriptcoregtk-6_0-1-debuginfo-2.52.0-150400.4.137.3 * libjavascriptcoregtk-4_0-18-2.52.0-150400.4.137.3 * libwebkit2gtk-4_0-37-2.52.0-150400.4.137.3 * Read the Full Advisory

* openSUSE Leap 15.4 (noarch)

* WebKitGTK-4.1-lang-2.52.0-150400.4.137.3

* WebKitGTK-4.0-lang-2.52.0-150400.4.137.3

* WebKitGTK-6.0-lang-2.52.0-150400.4.137.3

* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)

* webkitgtk-6_0-injected-bundles-debuginfo-2.52.0-150400.4.137.3

* webkit-jsc-4-debuginfo-2.52.0-150400.4.137.3

* typelib-1_0-JavaScriptCore-4_0-2.52.0-150400.4.137.3

* libjavascriptcoregtk-6_0-1-2.52.0-150400.4.137.3

* webkit-jsc-6.0-2.52.0-150400.4.137.3

* typelib-1_0-JavaScriptCore-4_1-2.52.0-150400.4.137.3

* typelib-1_0-JavaScriptCore-6_0-2.52.0-150400.4.137.3

* libwebkit2gtk-4_1-0-debuginfo-2.52.0-150400.4.137.3

* webkit-jsc-6.0-debuginfo-2.52.0-150400.4.137.3

* libjavascriptcoregtk-4_1-0-2.52.0-150400.4.137.3

* libjavascriptcoregtk-6_0-1-debuginfo-2.52.0-150400.4.137.3

* libjavascriptcoregtk-4_0-18-2.52.0-150400.4.137.3

* libwebkit2gtk-4_0-37-2.52.0-150400.4.137.3

* bsc#1259934 * bsc#1259935 * bsc#1259936 * bsc#1259937 * bsc#1259938 * bsc#1259939 * bsc#1259940 * bsc#1259941 * bsc#1259942 * bsc#1259943 * bsc#1259944 * bsc#1259945 * bsc#1259946 * bsc#1259947 * bsc#1259948 * bsc#1259949 * bsc#1259950 ## References: * * * * * * * * * * * * * Read the Full Advisory

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 Vulnerabilities in webkit2gtk3 Affecting openSUSE and SUSE Systems A significant update for webkit2gtk3 has been released to address multiple vulnerabilities, including CVE-2023-43010, CVE-2025-31223, CVE-2025-31277, CVE-2025-43213, CVE-2025-43214, CVE-2025-43433, CVE-2025-43438, and CVE-2025-43441. These vulnerabilities can lead to memory corruption and unexpected crashes when processing maliciously crafted web content. The update is crucial for users of openSUSE Leap 15.4 and SUSE Linux Enterprise systems. The vulnerabilities were disclosed between 2023 and 2025, with some being actively exploited, particularly CVE-2025-31277, which was added to the CISA KEV list on March 20, 2026. The patch is available through standard SUSE installation methods. Users are urged to apply the update promptly to mitigate potential risks. The overall impact is significant, affecting a wide range of systems reliant on webkit2gtk3. 4 sources 73

Extracted Entities

openSUSE Leap 15.4 webkit2gtk3 Important Memory Issues Vuln 2026-1150

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Extracted Entities

Companies (1)

CVEs (8)

Platforms (8)