RLSA-2026:99111

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Source
https://errata.rockylinux.org/RLSA-2026:99111
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:99111
Upstream
CVE (81)
  • CVE-2026-118007
  • CVE-2026-118019
  • CVE-2026-118021
  • CVE-2026-118024
  • CVE-2026-124853
  • CVE-2026-124854
  • CVE-2026-124855
  • CVE-2026-124856
  • CVE-2026-124857
  • CVE-2026-124858
  • CVE-2026-124859
  • CVE-2026-124860
  • CVE-2026-124861
  • CVE-2026-124862
  • CVE-2026-124863
  • CVE-2026-124864
  • CVE-2026-124865
  • CVE-2026-124866
  • CVE-2026-124868
  • CVE-2026-124869
  • CVE-2026-124870
  • CVE-2026-124872
  • CVE-2026-124873
  • CVE-2026-124874
  • CVE-2026-124875
  • CVE-2026-124876
  • CVE-2026-124877
  • CVE-2026-124879
  • CVE-2026-124880
  • CVE-2026-124881
  • CVE-2026-124882
  • CVE-2026-124883
  • CVE-2026-124884
  • CVE-2026-124885
  • CVE-2026-124886
  • CVE-2026-124887
  • CVE-2026-124888
  • CVE-2026-124889
  • CVE-2026-124890
  • CVE-2026-124891
  • CVE-2026-124892
  • CVE-2026-124893
  • CVE-2026-124894
  • CVE-2026-124895
  • CVE-2026-124896
  • CVE-2026-124897
  • CVE-2026-124898
  • CVE-2026-124899
  • CVE-2026-124901
  • CVE-2026-124902
  • CVE-2026-124903
  • CVE-2026-124905
  • CVE-2026-124906
  • CVE-2026-124907
  • CVE-2026-124909
  • CVE-2026-124910
  • CVE-2026-124912
  • CVE-2026-124913
  • CVE-2026-124914
  • CVE-2026-124915
  • CVE-2026-124917
  • CVE-2026-124918
  • CVE-2026-124919
  • CVE-2026-124922
  • CVE-2026-124924
  • CVE-2026-124926
  • CVE-2026-124927
  • CVE-2026-124929
  • CVE-2026-124930
  • CVE-2026-124931
  • CVE-2026-124932
  • CVE-2026-124933
  • CVE-2026-124934
  • CVE-2026-124935
  • CVE-2026-124938
  • CVE-2026-124939
  • CVE-2026-124940
  • CVE-2026-124941
  • CVE-2026-124942
  • CVE-2026-124948
  • CVE-2026-124951
Published
2026-11-13T12:04:43Z
Modified
2026-11-13T12:45:14Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Important: firefox security update
Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-118007)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the XPCOM component (CVE-2026-118021)

  • firefox: thunderbird: Use-after-free in the Graphics: Text component (CVE-2026-118024)

  • firefox: thunderbird: Race condition, use-after-free in the DOM: File component (CVE-2026-118019)

  • firefox: thunderbird: Use-after-free in the Audio/Video component (CVE-2026-124860)

  • firefox: thunderbird: Site isolation issue in the DOM: Navigation component (CVE-2026-124914)

  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-124869)

  • firefox: thunderbird: Privilege escalation in the DOM: Navigation component (CVE-2026-124854)

  • firefox: thunderbird: Use-after-free in the Layout: Positioned component (CVE-2026-124877)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the Widget: Gtk component (CVE-2026-124917)

  • firefox: thunderbird: Incorrect boundary conditions in the DOM: Selection component (CVE-2026-124891)

  • firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-124857)

  • firefox: thunderbird: Information disclosure in the Security: RLBox component (CVE-2026-124941)

  • firefox: thunderbird: Sandbox escape in the DOM: Navigation component (CVE-2026-124855)

  • firefox: thunderbird: Spoofing issue in the Security component (CVE-2026-124934)

  • firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics: Text component (CVE-2026-124853)

  • firefox: thunderbird: Sandbox escape in the DOM: Navigation component (CVE-2026-124905)

  • firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Storage: Cache API component (CVE-2026-124859)

  • firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-124881)

  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-124862)

  • firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-124882)

  • firefox: thunderbird: Information disclosure in the Private Browsing component (CVE-2026-124909)

  • firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-124876)

  • firefox: thunderbird: Use-after-free in the DOM: Workers component (CVE-2026-124893)

  • firefox: thunderbird: Use-after-free in the Graphics: WebRender component (CVE-2026-124906)

  • firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component (CVE-2026-124887)

  • firefox: thunderbird: Mitigation bypass in the WebExtensions component (CVE-2026-124910)

  • firefox: thunderbird: Privilege escalation in the Nimbus Desktop Client component (CVE-2026-124951)

  • firefox: thunderbird: Use-after-free in the Audio/Video component (CVE-2026-124865)

  • firefox: thunderbird: Incorrect boundary conditions, use-after-free in the Graphics component (CVE-2026-124948)

  • firefox: thunderbird: Undefined behavior in the WebRTC: Networking component (CVE-2026-124935)

  • firefox: thunderbird: Incorrect boundary conditions in the DOM: CSS Object Model component (CVE-2026-124875)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the IPC component (CVE-2026-124903)

  • firefox: thunderbird: Incorrect boundary conditions in the Networking: HTTP component (CVE-2026-124856)

  • firefox: thunderbird: Use-after-free in the Networking: Cookies component (CVE-2026-124894)

  • firefox: thunderbird: Use-after-free in the Storage: localStorage & sessionStorage component (CVE-2026-124895)

  • firefox: thunderbird: Use-after-free in the Graphics: Text component (CVE-2026-124885)

  • firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component (CVE-2026-124899)

  • firefox: thunderbird: Sandbox escape in the Console component (CVE-2026-124933)

  • firefox: thunderbird: Use-after-free in the Layout component (CVE-2026-124866)

  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-124883)

  • firefox: thunderbird: Information disclosure in the Layout: Form Controls component (CVE-2026-124929)

  • firefox: thunderbird: Incorrect boundary conditions in the JavaScript: GC component (CVE-2026-124870)

  • firefox: thunderbird: Site isolation issue in the Graphics: WebRender component (CVE-2026-124927)

  • firefox: thunderbird: Incorrect boundary conditions in the Graphics: WebGPU component (CVE-2026-124915)

  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-124890)

  • firefox: thunderbird: Information disclosure in the Address Bar component (CVE-2026-124930)

  • firefox: thunderbird: Invalid pointer in the Layout: Text and Fonts component (CVE-2026-124886)

  • firefox: thunderbird: Use-after-free in the DOM: HTML Parser component (CVE-2026-124858)

  • firefox: thunderbird: Privilege escalation, sandbox escape due to use-after-free in the Graphics: CanvasWebGL component (CVE-2026-124907)

  • firefox: thunderbird: Invalid pointer in the DOM: Editor component (CVE-2026-124873)

  • firefox: thunderbird: Spoofing issue in the DOM: Security component (CVE-2026-124912)

  • firefox: thunderbird: Same-origin policy bypass in the Networking: HTTP component (CVE-2026-124874)

  • firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-124892)

  • firefox: thunderbird: Invalid pointer in the DOM: Streams component (CVE-2026-124942)

  • firefox: thunderbird: Use-after-free in the CSS Transitions and Animations component (CVE-2026-124922)

  • firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-124918)

  • firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-124884)

  • firefox: thunderbird: Incorrect boundary conditions in the DOM: Core & HTML component (CVE-2026-124868)

  • firefox: thunderbird: Privilege escalation due to use-after-free in the WebRTC: Networking component (CVE-2026-124919)

  • firefox: thunderbird: Incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-124924)

  • firefox: thunderbird: Same-origin policy bypass due to race condition in the Audio/Video component (CVE-2026-124902)

  • firefox: thunderbird: Invalid pointer in the Networking: Cache component (CVE-2026-124879)

  • firefox: thunderbird: Use-after-free in the Graphics component (CVE-2026-124932)

  • firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-124940)

  • firefox: thunderbird: Same-origin policy bypass in the DOM: Core & HTML component (CVE-2026-124931)

  • firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-124926)

  • firefox: thunderbird: Use-after-free in the DOM: HTML Parser component (CVE-2026-124863)

  • firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-124889)

  • firefox: thunderbird: Site isolation issue in the Networking component (CVE-2026-124913)

  • firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-124897)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the DOM: Service Workers component (CVE-2026-124864)

  • firefox: thunderbird: Use-after-free in the Cycle Collector component (CVE-2026-124872)

  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-124880)

  • firefox: thunderbird: Invalid pointer in the Layout: Text and Fonts component (CVE-2026-124896)

  • firefox: thunderbird: Other issue in the Networking: JAR component (CVE-2026-124901)

  • firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component (CVE-2026-124888)

  • firefox: thunderbird: Mitigation bypass in the Add-ons Manager component (CVE-2026-124938)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the Audio/Video: cubeb component (CVE-2026-124861)

  • firefox: thunderbird: Use-after-free in the DOM: Editor component (CVE-2026-124898)

  • firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-124939)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Database specific 
{
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:99111"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:9
firefox

Package

Name
firefox
Purl
pkg:rpm/rocky-linux/firefox?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debuginfo

Package

Name
firefox-debuginfo
Purl
pkg:rpm/rocky-linux/firefox-debuginfo?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debugsource

Package

Name
firefox-debugsource
Purl
pkg:rpm/rocky-linux/firefox-debugsource?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-x11

Package

Name
firefox-x11
Purl
pkg:rpm/rocky-linux/firefox-x11?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox

Package

Name
firefox
Purl
pkg:rpm/rocky-linux/firefox?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debuginfo

Package

Name
firefox-debuginfo
Purl
pkg:rpm/rocky-linux/firefox-debuginfo?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debugsource

Package

Name
firefox-debugsource
Purl
pkg:rpm/rocky-linux/firefox-debugsource?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-x11

Package

Name
firefox-x11
Purl
pkg:rpm/rocky-linux/firefox-x11?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox

Package

Name
firefox
Purl
pkg:rpm/rocky-linux/firefox?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debuginfo

Package

Name
firefox-debuginfo
Purl
pkg:rpm/rocky-linux/firefox-debuginfo?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debugsource

Package

Name
firefox-debugsource
Purl
pkg:rpm/rocky-linux/firefox-debugsource?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-x11

Package

Name
firefox-x11
Purl
pkg:rpm/rocky-linux/firefox-x11?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox

Package

Name
firefox
Purl
pkg:rpm/rocky-linux/firefox?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debuginfo

Package

Name
firefox-debuginfo
Purl
pkg:rpm/rocky-linux/firefox-debuginfo?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-debugsource

Package

Name
firefox-debugsource
Purl
pkg:rpm/rocky-linux/firefox-debugsource?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"
firefox-x11

Package

Name
firefox-x11
Purl
pkg:rpm/rocky-linux/firefox-x11?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:153.7.0-1.el9_9
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:99111.json"