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CVE-2026-74951

Clickjacking issue in Firefox for Android

6.5 Medium

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.27%Up 0.1 points since Aug 19, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.5

Clickjacking issue in Firefox for Android

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Record
CVE-2026-74951
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-1021
Updated
2026-11-02
EUVDEUVD-2026-60679 6.5

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Record
EUVD-2026-60679
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-39vv-6g7f-9j66 6.5

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Record
GHSA-39vv-6g7f-9j66
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-1021
Updated
2026-11-02
NVD 6.5

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Record
CVE-2026-74951
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-1021
Updated
2026-11-02
OSV 6.5

Clickjacking issue in Firefox for Android

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Record
CVE-2026-74951
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2026-74951 6.5

Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154.

Record
UBUNTU-CVE-2026-74951
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVopenSUSE-SU-2026:11580-1 No score

MozillaFirefox-154.0-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-154.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11580-1
Updated
2026-11-02
OSVSUSE-SU-2026:3658-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.14.0 ESR.

  • MFSA 2026-74 (bsc#1274867)
    • CVE-2026-74934: Site isolation issue in the Graphics: CanvasWebGL component.
    • CVE-2026-74935: Privilege escalation in the DOM: Networking component.
    • CVE-2026-74936: Use-after-free in the JavaScript: WebAssembly component.
    • CVE-2026-74937: Use-after-free in the JavaScript: GC component.
    • CVE-2026-74938: Mitigation bypass in the JavaScript: GC component.
    • CVE-2026-74939: Privilege escalation in the DOM: Navigation component.
    • CVE-2026-74940: Use-after-free in the Graphics: Text component.
    • CVE-2026-74941: Privilege escalation in the Graphics: CanvasWebGL component.
    • CVE-2026-74942: Privilege escalation in the Remote Settings Client component.
    • CVE-2026-74943: Use-after-free in the Graphics: ImageLib component.
    • CVE-2026-74944: Use-after-free in the DOM: Core & HTML component.
    • CVE-2026-74945: Information disclosure in the Graphics: Text component.
    • CVE-2026-74946: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component.
    • CVE-2026-74947: Privilege escalation due to invalid pointer in the Graphics component.
    • CVE-2026-74948: Information disclosure in the Graphics component.
    • CVE-2026-74949: Privilege escalation due to use-after-free in the Graphics: Canvas2D component.
    • CVE-2026-74950: Privilege escalation in the Downloads API component.
    • CVE-2026-74951: Clickjacking issue in Firefox for Android.
    • CVE-2026-74952: Privilege escalation in the Application Update component.
    • CVE-2026-74953: Privilege escalation in the Networking: Cookies component.
    • CVE-2026-74954: Information disclosure due to side-channel in the Storage: Cache API component.
    • CVE-2026-74955: Privilege escalation in the Request Handling component.
    • CVE-2026-74956: Same-origin policy bypass in the DOM: Service Workers component.
    • CVE-2026-74957: Mitigation bypass in the Safe Browsing component.
    • CVE-2026-74958: Information disclosure in the WebRTC component.
    • CVE-2026-74959: Mitigation bypass in the Storage: Cache API component.
    • CVE-2026-74960: Site isolation issue in the WebExtensions component.
    • CVE-2026-74961: Side-channel in the Web Audio component.
    • CVE-2026-74962: Site isolation issue in the Networking: Cookies component.
    • CVE-2026-74963: Same-origin policy bypass in the Networking: Cookies component.
    • CVE-2026-74964: Integer overflow in the Graphics component.
    • CVE-2026-74965: Privilege escalation in the Shell Integration component.
    • CVE-2026-74966: Information disclosure in the Form Autofill component.
    • CVE-2026-74967: Same-origin policy bypass in the Audio/Video: Playback component.
    • CVE-2026-74968: Site isolation issue in the Graphics: WebRender component.
    • CVE-2026-74969: Use-after-free in the Layout: Text and Fonts component.
    • CVE-2026-74970: Site isolation issue in the Graphics component.
    • CVE-2026-74971: Information disclosure in the DOM: UI Events & Focus Handling component.
    • CVE-2026-74972: Information disclosure in the DOM: Push Subscriptions component.
    • CVE-2026-74973: Race condition, use-after-free in the Graphics component.
    • CVE-2026-74974: Same-origin policy bypass in the Graphics: ImageLib component.
    • CVE-2026-74975: Spoofing issue in the Downloads component in Firefox for Android.
    • CVE-2026-74976: JIT miscompilation in the JavaScript Engine: JIT component.
    • CVE-2026-74977: Integer overflow in the Graphics component.
    • CVE-2026-74978: Clickjacking issue in the Widget component.
    • CVE-2026-74979: Mitigation bypass in the Add-ons Manager component.
    • CVE-2026-74980: Clickjacking issue in the Downloads component in Firefox for Android.
    • CVE-2026-74981: Site isolation issue in the Audio/Video: Web Codecs component.
    • CVE-2026-74982: Denial-of-service in the Widget component.
    • CVE-2026-74983: Mitigation bypass in the…
Record
SUSE-SU-2026:3658-1
Updated
2026-11-02
OSVSUSE-SU-2026:3683-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.14.0 ESR.

  • MFSA 2026-74 (bsc#1274867):
    • CVE-2026-74934: Site isolation issue in the Graphics: CanvasWebGL component.
    • CVE-2026-74935: Privilege escalation in the DOM: Networking component.
    • CVE-2026-74936: Use-after-free in the JavaScript: WebAssembly component.
    • CVE-2026-74937: Use-after-free in the JavaScript: GC component.
    • CVE-2026-74938: Mitigation bypass in the JavaScript: GC component.
    • CVE-2026-74939: Privilege escalation in the DOM: Navigation component.
    • CVE-2026-74940: Use-after-free in the Graphics: Text component.
    • CVE-2026-74941: Privilege escalation in the Graphics: CanvasWebGL component.
    • CVE-2026-74942: Privilege escalation in the Remote Settings Client component.
    • CVE-2026-74943: Use-after-free in the Graphics: ImageLib component.
    • CVE-2026-74944: Use-after-free in the DOM: Core & HTML component.
    • CVE-2026-74945: Information disclosure in the Graphics: Text component.
    • CVE-2026-74946: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component.
    • CVE-2026-74947: Privilege escalation due to invalid pointer in the Graphics component.
    • CVE-2026-74948: Information disclosure in the Graphics component.
    • CVE-2026-74949: Privilege escalation due to use-after-free in the Graphics: Canvas2D component.
    • CVE-2026-74950: Privilege escalation in the Downloads API component.
    • CVE-2026-74951: Clickjacking issue in Firefox for Android.
    • CVE-2026-74952: Privilege escalation in the Application Update component.
    • CVE-2026-74953: Privilege escalation in the Networking: Cookies component.
    • CVE-2026-74954: Information disclosure due to side-channel in the Storage: Cache API component.
    • CVE-2026-74955: Privilege escalation in the Request Handling component.
    • CVE-2026-74956: Same-origin policy bypass in the DOM: Service Workers component.
    • CVE-2026-74957: Mitigation bypass in the Safe Browsing component.
    • CVE-2026-74958: Information disclosure in the WebRTC component.
    • CVE-2026-74959: Mitigation bypass in the Storage: Cache API component.
    • CVE-2026-74960: Site isolation issue in the WebExtensions component.
    • CVE-2026-74961: Side-channel in the Web Audio component.
    • CVE-2026-74962: Site isolation issue in the Networking: Cookies component.
    • CVE-2026-74963: Same-origin policy bypass in the Networking: Cookies component.
    • CVE-2026-74964: Integer overflow in the Graphics component.
    • CVE-2026-74965: Privilege escalation in the Shell Integration component.
    • CVE-2026-74966: Information disclosure in the Form Autofill component.
    • CVE-2026-74967: Same-origin policy bypass in the Audio/Video: Playback component.
    • CVE-2026-74968: Site isolation issue in the Graphics: WebRender component.
    • CVE-2026-74969: Use-after-free in the Layout: Text and Fonts component.
    • CVE-2026-74970: Site isolation issue in the Graphics component.
    • CVE-2026-74971: Information disclosure in the DOM: UI Events & Focus Handling component.
    • CVE-2026-74972: Information disclosure in the DOM: Push Subscriptions component.
    • CVE-2026-74973: Race condition, use-after-free in the Graphics component.
    • CVE-2026-74974: Same-origin policy bypass in the Graphics: ImageLib component.
    • CVE-2026-74975: Spoofing issue in the Downloads component in Firefox for Android.
    • CVE-2026-74976: JIT miscompilation in the JavaScript Engine: JIT component.
    • CVE-2026-74977: Integer overflow in the Graphics component.
    • CVE-2026-74978: Clickjacking issue in the Widget component.
    • CVE-2026-74979: Mitigation bypass in the Add-ons Manager component.
    • CVE-2026-74980: Clickjacking issue in the Downloads component in Firefox for Android.
    • CVE-2026-74981: Site isolation issue in the Audio/Video: Web Codecs component.
    • CVE-2026-74982: Denial-of-service in the Widget component.
    • CVE-2026-74983: Mitigation bypass in the…
Record
SUSE-SU-2026:3683-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
Show 14 moreShow less
Affected packages
PackageAffectedFixed
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 58 CVEs
 before 140.14.0-150200.152.251.1
140.14.0-150200.152.251.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 58 CVEs
 before 140.14.0-112.327.1
140.14.0-112.327.1
MozillaFirefox
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 58 CVEs
 before 140.14.0-112.327.1
140.14.0-112.327.1
mozjs52
Ubuntu:18.04:LTS
 All versions, plus listed versions
52.3.1-0ubuntu352.3.1-7fakesync152.8.1-0ubuntu0.18.04.152.9.1-0ubuntu0.18.04.1
 None known
mozjs38
Ubuntu:18.04:LTS
 All versions, plus listed versions
38.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu4
 None known
mozjs68
Ubuntu:20.04:LTS
 All versions, plus listed versions
68.5.0-1~fakesync68.5.0-2~fakesync68.6.0-168.6.0-1ubuntu1
 None known
mozjs52
Ubuntu:20.04:LTS
 All versions, plus listed versions
52.9.1-1build152.9.1-1ubuntu3
 None known
mozjs102
Ubuntu:22.04:LTS
 All versions, plus listed versions
102.11.0-0ubuntu0.22.04.1102.12.0-0ubuntu0.22.04.1102.13.0-0ubuntu0.22.04.1102.15.1-0ubuntu0.22.04.1
 None known
mozjs78
Ubuntu:22.04:LTS
 All versions, plus listed versions
78.13.0-178.15.0-278.15.0-4ubuntu1
 None known
mozjs91
Ubuntu:22.04:LTS
 All versions, plus listed versions
91.5.1-0ubuntu191.6.0-191.6.0-291.7.0-291.10.0-0ubuntu1
 None known
thunderbird
Ubuntu:22.04:LTS
 All versions, plus listed versions
1:91.1.2+build1-0ubuntu11:91.3.0+build2-0ubuntu11:91.3.1+build1-0ubuntu11:91.3.2+build1-0ubuntu11:91.4.0+build1.1-0ubuntu1
Show 34 moreShow less
1:91.4.0+build2-0ubuntu11:91.5.0+build1-0ubuntu11:91.5.1+build1-0ubuntu11:91.6.1+build1-0ubuntu11:91.7.0+build1-0ubuntu11:91.7.0+build2-0ubuntu11:91.8.0+build2-0ubuntu11:91.9.1+build1-0ubuntu0.22.04.11:91.11.0+build2-0ubuntu0.22.04.11:102.2.2+build1-0ubuntu0.22.04.11:102.4.2+build2-0ubuntu0.22.04.11:102.7.1+build2-0ubuntu0.22.04.11:102.8.0+build2-0ubuntu0.22.04.11:102.9.0+build1-0ubuntu0.22.04.11:102.10.0+build2-0ubuntu0.22.04.11:102.11.0+build1-0ubuntu0.22.04.11:102.13.0+build1-0ubuntu0.22.04.11:102.15.0+build1-0ubuntu0.22.04.11:102.15.1+build1-0ubuntu0.22.04.11:115.3.1+build1-0ubuntu0.22.04.21:115.4.1+build1-0ubuntu0.22.04.11:115.5.0+build1-0ubuntu0.22.04.11:115.6.0+build2-0ubuntu0.22.04.11:115.8.1+build1-0ubuntu0.22.04.11:115.9.0+build1-0ubuntu0.22.04.11:115.10.1+build1-0ubuntu0.22.04.11:115.11.0+build2-0ubuntu0.22.04.11:115.12.0+build3-0ubuntu0.22.04.11:115.13.0+build5-0ubuntu0.22.04.11:115.15.0+build1-0ubuntu0.22.04.11:115.16.0+build2-0ubuntu0.22.04.11:115.18.0+build1-0ubuntu0.22.04.11:128.12.0+build1-0ubuntu0.22.04.11:140.7.1+build1-0ubuntu0.22.04.1
 None known
mozjs102
Ubuntu:24.04:LTS
 All versions, plus listed versions
102.15.1-1102.15.1-3ubuntu2
 None known
mozjs115
Ubuntu:24.04:LTS
 All versions, plus listed versions
115.3.0-0ubuntu1115.4.0-2115.5.0-1115.6.0-1115.7.0-4
Show 4 moreShow less
115.8.0-1115.9.0-1115.9.0-1build1115.10.0-1
 None known
MozillaFirefox
openSUSE:Tumbleweed
From an advisory covering 58 CVEs
 before 154.0-1.1
154.0-1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-74951 is a medium vulnerability (CVSS 6.5) in Mozilla Firefox, published August 18, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 20th percentile. No source names a fixed version.

References

Show 63 moreShow less
This page doesn't list everything

Left out here: the rest of 2 source descriptions. The JSON record has them.

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