Description
A nested iframe, triggering a cross-site navigation, could send SameSite=Strict or Lax cookies. This vulnerability affects Firefox < 128 and Thunderbird < 128.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 128 | 128 |
| Mozilla | Thunderbird | unspecified – < 128 | 128 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +2 | No fix yet | — |
| Ubuntu 20.04 LTS | firefox | 128.0+build2-0ubuntu0.20.04.1 | USN-6890-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP6 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP6 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
| SLES 15 SP5 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP5 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP5 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
| SLES 15 SP4 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP4 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP3 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP3 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP2 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP2 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 128.1.0-112.221.1 | SUSE-SU-2024:2876-1 |
| SLES 12 SP5 | MozillaFirefox-branding-SLE | 128-35.15.1 | SUSE-SU-2024:2876-1 |
| SLES for SAP 15 SP4 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP4 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP3 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP2 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 128.1.0-112.221.1 | SUSE-SU-2024:2876-1 |
| SLES for SAP 12 SP5 | MozillaFirefox-branding-SLE | 128-35.15.1 | SUSE-SU-2024:2876-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP4 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP3 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP2 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 128.0-1.1 | openSUSE-SU-2024:14197-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.6 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.6 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.6 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.5 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | firefox | 128.0-r0 | — |
Advisories 7
- USN-6890-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2024:2876-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14197-1 MozillaFirefox-128.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3003-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3507-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1568 Mozilla Firefox und Firefox ESR: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 16, 2025