OESA-2026-1085

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-1085
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-1085.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-1085
Upstream
  • CVE-2025-14321
  • CVE-2025-14322
  • CVE-2025-14323
  • CVE-2025-14324
  • CVE-2025-14325
  • CVE-2025-14327
  • CVE-2025-14328
  • CVE-2025-14329
  • CVE-2025-14330
  • CVE-2025-14331
  • CVE-2025-14333
  • CVE-2026-0877
  • CVE-2026-0878
  • CVE-2026-0879
  • CVE-2026-0880
  • CVE-2026-0882
  • CVE-2026-0883
  • CVE-2026-0884
  • CVE-2026-0885
  • CVE-2026-0886
  • CVE-2026-0887
  • CVE-2026-0890
  • CVE-2026-0891
Published
2026-01-16T11:58:15Z
Modified
2026-01-16T12:30:16.867432Z
Summary
firefox security update
Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global mozdebugprefix /lib/debug %global mozdebugdir /lib/debug/ %global unamem %(uname -m) %global symbolsfilename -.en-US.-%(uname.crashreporter-symbols.zip %global symbolsfilepath /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _finddebuginfoopts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporterpkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Use-after-free vulnerability in the WebRTC Signaling component of Firefox browser. This vulnerability affects Firefox versions prior to 146 and Firefox ESR versions prior to 140.6.(CVE-2025-14321)

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, and Firefox ESR < 140.6.(CVE-2025-14322)

Privilege escalation in the DOM: Notifications component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, and Firefox ESR < 140.6.(CVE-2025-14323)

A JIT (Just-In-Time) miscompilation vulnerability exists in the JavaScript Engine component of Mozilla Firefox. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, and Firefox ESR < 140.6. An attacker could potentially exploit this vulnerability to cause memory corruption or execute arbitrary code.(CVE-2025-14324)

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146 and Firefox ESR < 140.6.(CVE-2025-14325)

Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, and Firefox ESR < 140.7.(CVE-2025-14327)

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 146 and Firefox ESR < 140.6.(CVE-2025-14328)

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 146 and Firefox ESR < 140.6.(CVE-2025-14329)

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.(CVE-2025-14330)

A same-origin policy bypass vulnerability exists in the Request Handling component of Firefox. This vulnerability affects Firefox versions prior to 146, Firefox ESR versions prior to 115.31, and Firefox ESR versions prior to 140.6.(CVE-2025-14331)

Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 146 and Firefox ESR < 140.6.(CVE-2025-14333)

Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0877)

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0878)

Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0879)

Sandbox escape due to integer overflow in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0880)

Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0882)

Information disclosure in the Networking component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0883)

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0884)

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0885)

Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0886)

Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0887)

Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.(CVE-2026-0890)

Multiple memory safety bugs were present in Mozilla Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146, and Thunderbird 146. Some of these bugs showed evidence of memory corruption, and it is presumed that with enough effort, some could have been exploited to run arbitrary code. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7, threatening confidentiality, integrity, and availability.(CVE-2026-0891)

Database specific 
{
    "severity": "Critical"
}
References

Affected packages

openEuler:24.03-LTS-SP1 / firefox

Package

Name
firefox
Purl
pkg:rpm/openEuler/firefox&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.7.0-1.oe2403sp1

Ecosystem specific 

{
    "aarch64": [
        "firefox-140.7.0-1.oe2403sp1.aarch64.rpm",
        "firefox-debuginfo-140.7.0-1.oe2403sp1.aarch64.rpm",
        "firefox-debugsource-140.7.0-1.oe2403sp1.aarch64.rpm"
    ],
    "src": [
        "firefox-140.7.0-1.oe2403sp1.src.rpm"
    ],
    "x86_64": [
        "firefox-140.7.0-1.oe2403sp1.x86_64.rpm",
        "firefox-debuginfo-140.7.0-1.oe2403sp1.x86_64.rpm",
        "firefox-debugsource-140.7.0-1.oe2403sp1.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-1085.json"