SUSE-SU-2026:0871-1

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Source
https://www.suse.com/support/update/announcement/2026/suse-su-20260871-1/
Import Source
https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/SUSE-SU-2026:0871-1
Upstream
Related
Published
2026-03-11T17:05:23Z
Modified
2026-03-13T08:50:22.443861Z
Summary
Security update for MozillaFirefox
Details

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.8.0 ESR (MFSA 2026-15) (bsc#1258568):

  • CVE-2026-2757: Incorrect boundary conditions in the WebRTC: Audio/Video component
  • CVE-2026-2758: Use-after-free in the JavaScript: GC component
  • CVE-2026-2759: Incorrect boundary conditions in the Graphics: ImageLib component
  • CVE-2026-2760: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component
  • CVE-2026-2761: Sandbox escape in the Graphics: WebRender component
  • CVE-2026-2762: Integer overflow in the JavaScript: Standard Library component
  • CVE-2026-2763: Use-after-free in the JavaScript Engine component
  • CVE-2026-2764: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
  • CVE-2026-2765: Use-after-free in the JavaScript Engine component
  • CVE-2026-2766: Use-after-free in the JavaScript Engine: JIT component
  • CVE-2026-2767: Use-after-free in the JavaScript: WebAssembly component
  • CVE-2026-2768: Sandbox escape in the Storage: IndexedDB component
  • CVE-2026-2769: Use-after-free in the Storage: IndexedDB component
  • CVE-2026-2770: Use-after-free in the DOM: Bindings (WebIDL) component
  • CVE-2026-2771: Undefined behavior in the DOM: Core & HTML component
  • CVE-2026-2772: Use-after-free in the Audio/Video: Playback component
  • CVE-2026-2773: Incorrect boundary conditions in the Web Audio component
  • CVE-2026-2774: Integer overflow in the Audio/Video component
  • CVE-2026-2775: Mitigation bypass in the DOM: HTML Parser component
  • CVE-2026-2776: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software
  • CVE-2026-2777: Privilege escalation in the Messaging System component
  • CVE-2026-2778: Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component
  • CVE-2026-2779: Incorrect boundary conditions in the Networking: JAR component
  • CVE-2026-2780: Privilege escalation in the Netmonitor component
  • CVE-2026-2781: Integer overflow in the Libraries component in NSS
  • CVE-2026-2782: Privilege escalation in the Netmonitor component
  • CVE-2026-2783: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component
  • CVE-2026-2784: Mitigation bypass in the DOM: Security component
  • CVE-2026-2785: Invalid pointer in the JavaScript Engine component
  • CVE-2026-2786: Use-after-free in the JavaScript Engine component
  • CVE-2026-2787: Use-after-free in the DOM: Window and Location component
  • CVE-2026-2788: Incorrect boundary conditions in the Audio/Video: GMP component
  • CVE-2026-2789: Use-after-free in the Graphics: ImageLib component
  • CVE-2026-2790: Same-origin policy bypass in the Networking: JAR component
  • CVE-2026-2791: Mitigation bypass in the Networking: Cache component
  • CVE-2026-2792: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148
  • CVE-2026-2793: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148
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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-branding-upstream": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.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
140.8.0-150200.152.222.1

Ecosystem specific 

{
    "binaries": [
        {
            "MozillaFirefox-translations-common": "140.8.0-150200.152.222.1",
            "MozillaFirefox": "140.8.0-150200.152.222.1",
            "MozillaFirefox-devel": "140.8.0-150200.152.222.1",
            "MozillaFirefox-translations-other": "140.8.0-150200.152.222.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0871-1.json"