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openSUSE Firefox Security Update 2026-0260-1 Addressing CVE-2025-14327

opensuse
Calendar Grey January 23, 2026
Dist Opensuse Esm H88
Update for MozillaFirefox resolves 13 important issues including sandbox escapes and information disclosures.
An update that solves 13 vulnerabilities can now be installed.

Description

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.7.0 ESR (bsc#1256340).

* MFSA 2026-03

* CVE-2026-0877: Mitigation bypass in the DOM: Security component

* CVE-2026-0878: Sandbox escape due to incorrect boundary conditions in the

Graphics: CanvasWebGL component

* CVE-2026-0879: Sandbox escape due to incorrect boundary conditions in the

Graphics component

* CVE-2026-0880: Sandbox escape due to integer overflow in the Graphics

component

* CVE-2026-0882: Use-after-free in the IPC component

* CVE-2025-14327: Spoofing issue in the Downloads Panel component

* CVE-2026-0883: Information disclosure in the Networking component

* CVE-2026-0884: Use-after-free in the JavaScript Engine component

* CVE-2026-0885: Use-after-free in the JavaScript: GC component

* CVE-2026-0886: Incorrect boundary conditions in the Graphics component

* CVE-2026-0887: Clickjacking issue, information disclosure in the PDF...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory important information disclosure OpenSUSE sandbox escape MozillaFirefox

Patch

## 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-15.6-2026-260=1

* Desktop Applications Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-260=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-260=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-260=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-260=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-260=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-260=1

* SUSE Linux...

Read the Full Advisory

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)

* MozillaFirefox-translations-other-140.7.0-150200.152.216.1

* MozillaFirefox-debugsource-140.7.0-150200.152.216.1

* MozillaFirefox-translations-common-140.7.0-150200.152.216.1

* MozillaFirefox-140.7.0-150200.152.216.1

* MozillaFirefox-branding-upstream-140.7.0-150200.152.216.1

* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1

* openSUSE Leap 15.6 (noarch)

* MozillaFirefox-devel-140.7.0-150200.152.216.1

* Desktop Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)

* MozillaFirefox-translations-other-140.7.0-150200.152.216.1

* MozillaFirefox-debugsource-140.7.0-150200.152.216.1

* MozillaFirefox-translations-common-140.7.0-150200.152.216.1

* MozillaFirefox-140.7.0-150200.152.216.1

* MozillaFirefox-debuginfo-140.7.0-150200.152.216.1

* Desktop Applications Module 15-SP7 (noarch)

* MozillaFirefox-devel-140.7.0-150200.152.216.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64

x86_64)

*...

Read the Full Advisory

References

* bsc#1256340

## References:

* https://www.suse.com/security/cve/CVE-2025-14327.html

* https://www.suse.com/security/cve/CVE-2026-0877.html

* https://www.suse.com/security/cve/CVE-2026-0878.html

* https://www.suse.com/security/cve/CVE-2026-0879.html

* https://www.suse.com/security/cve/CVE-2026-0880.html

* https://www.suse.com/security/cve/CVE-2026-0882.html

* https://www.suse.com/security/cve/CVE-2026-0883.html

* https://www.suse.com/security/cve/CVE-2026-0884.html

* https://www.suse.com/security/cve/CVE-2026-0885.html

* https://www.suse.com/security/cve/CVE-2026-0886.html

* https://www.suse.com/security/cve/CVE-2026-0887.html

* https://www.suse.com/security/cve/CVE-2026-0890.html

* https://www.suse.com/security/cve/CVE-2026-0891.html

* https://bugzilla.suse.com/show_bug.cgi?id=1256340

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0260-1
Release Date: 2026-01-22T16:12:21Z
Affected Products: * Desktop Applications Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory important information disclosure OpenSUSE sandbox escape MozillaFirefox

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