SUSE-SU-2026:0260-1

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Source
https://www.suse.com/support/update/announcement/2026/suse-su-20260260-1/
Import Source
https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/SUSE-SU-2026:0260-1
Upstream
Related
Published
2026-01-22T16:11:44Z
Modified
2026-03-11T07:31:16.307172Z
Summary
Security update for MozillaFirefox
Details

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 Viewer component
    • CVE-2026-0890: Spoofing issue in the DOM: Copy-Paste and Drag-Drop component
    • CVE-2026-0891: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
References

Affected packages

openSUSE:Leap 15.6
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1",
            "MozillaFirefox-branding-upstream": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP7

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise Server 15 SP4-LTSS
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise Server 15 SP5-LTSS
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise Server 15 SP6-LTSS
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
MozillaFirefox

Package

Name
MozillaFirefox
Purl
pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-150200.152.216.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-other": "140.7.0-150200.152.216.1",
            "MozillaFirefox-devel": "140.7.0-150200.152.216.1",
            "MozillaFirefox": "140.7.0-150200.152.216.1",
            "MozillaFirefox-translations-common": "140.7.0-150200.152.216.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0260-1.json"