Description
A bug in popup notifications' interaction with WebAuthn made it easier for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 126 | 126 |
| Mozilla | Firefox ESR | unspecified – < 115.11 | 115.11 |
| Mozilla | Thunderbird | unspecified – < 115.11 | 115.11 |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | firefox-esr | 115.11.0esr-1 | — |
| Debian 14 | thunderbird | 1:115.11.0-1 | — |
| Debian 13 | firefox-esr | 115.11.0esr-1 | — |
| Debian 13 | thunderbird | 1:115.11.0-1 | — |
| Debian 12 | firefox-esr | 115.11.0esr-1~deb12u1 | DSA-5691-1 |
| Debian 12 | thunderbird | 1:115.11.0-1~deb12u1 | DSA-5693-1 |
| Debian 11 | firefox-esr | 115.11.0esr-1~deb11u1 | DSA-5691-1 |
| Debian 11 | thunderbird | 1:115.11.0-1~deb11u1 | DSA-5693-1 |
| Debian 10 | firefox-esr | 115.11.0esr-1~deb10u1 | DLA-3815-1 |
| Debian 10 | thunderbird | 1:115.11.0-1~deb10u1 | DLA-3817-1 |
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 22.04 LTS | thunderbird | 1:115.11.0+build2-0ubuntu0.22.04.1 | USN-6782-1 |
| Ubuntu 20.04 LTS | firefox | 126.0+build2-0ubuntu0.20.04.1 | USN-6779-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 20.04 LTS | thunderbird | 1:115.11.0+build2-0ubuntu0.20.04.1 | USN-6782-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | firefox +2 | 115.11.0-1.el9_4 | RHSA-2024:2888, RHSA-2024:2883 |
| RHEL 8 | firefox +1 | 115.11.0-1.el8_10 | RHSA-2024:3784, RHSA-2024:3783 |
| RHEL 7 | firefox +1 | 115.11.0-1.el7_9 | RHSA-2024:2913, RHSA-2024:2881 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | firefox +2 | 115.11.0-1.el9_2 | RHSA-2024:2906, RHSA-2024:2903 |
| RHEL 9.0 EUS | firefox +1 | 115.11.0-1.el9_0 | RHSA-2024:2904, RHSA-2024:2884 |
| RHEL 8.8 EUS | firefox +1 | 115.11.0-1.el8_8 | RHSA-2024:2905, RHSA-2024:2885 |
| RHEL 8.6 EUS | firefox +1 | 115.11.0-1.el8_6 | RHSA-2024:2912, RHSA-2024:2887 |
| RHEL 8.4 TUS | firefox +1 | 115.11.0-1.el8_4 | RHSA-2024:2911, RHSA-2024:2886 |
| RHEL 8.4 E4S | firefox +1 | 115.11.0-1.el8_4 | RHSA-2024:2911, RHSA-2024:2886 |
| RHEL 8.4 AUS | firefox +1 | 115.11.0-1.el8_4 | RHSA-2024:2911, RHSA-2024:2886 |
| RHEL 8.2 AUS | firefox +1 | 115.11.0-1.el8_2 | RHSA-2024:3338, RHSA-2024:2882 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox +2 | 115.11.0-1.el9_4.alma.1 | ALSA-2024:2888, ALSA-2024:2883 |
| AlmaLinux 8 | firefox +1 | 115.11.0-1.el8_10.alma.1 | ALSA-2024:3784, ALSA-2024:3783 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | thunderbird | 115.11.0-1.el9_4 | RLSA-2024:2888 |
| Rocky Linux 8 | firefox +1 | 115.11.0-1.el8_10 | RLSA-2024:3784, RLSA-2024:3783 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLES 15 SP6 | MozillaThunderbird | 115.11.0-150200.8.160.1 | SUSE-SU-2024:1858-1 |
| SLES 15 SP5 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLES 15 SP5 | MozillaThunderbird | 115.11.0-150200.8.160.1 | SUSE-SU-2024:1858-1 |
| SLES 15 SP4 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLES 15 SP3 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLES 15 SP2 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 115.11.0-112.212.1 | SUSE-SU-2024:1676-1 |
| SLES for SAP 15 SP4 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 115.11.0-112.212.1 | SUSE-SU-2024:1676-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 126.0-1.1 | openSUSE-SU-2024:13980-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 115.11.0-1.1 | openSUSE-SU-2024:13981-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.6 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| openSUSE Leap 15.6 | MozillaThunderbird | 115.11.0-150200.8.160.1 | SUSE-SU-2024:1858-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 115.11.0-150200.152.137.2 | SUSE-SU-2024:1770-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 115.11.0-150200.8.160.1 | SUSE-SU-2024:1858-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 115.11.0-1.amzn2.0.1 | ALAS2-2024-2561 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox +2 | 115.11.0-1.0.1.el9_4 | ELSA-2024-2888, ELSA-2024-2883 |
| Oracle Linux 8 | firefox +1 | 115.11.0-1.0.1.el8_10 | ELSA-2024-3784, ELSA-2024-3783 |
| Oracle Linux 7 | firefox +1 | 115.11.0-1.0.1.el7_9 | ELSA-2024-2913, ELSA-2024-2881 |
Advisories 46
- ALSA-2024:2883 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2888 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3783 Moderate: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3784 Moderate: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:3783 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:3784 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:3338 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2913 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2912 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2906 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2911 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2905 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2903 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2904 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2887 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2888 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2886 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2885 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2884 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2882 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2883 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2024:2881 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- USN-6779-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-6782-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5693-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5691-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3817-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3815-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:3783 Moderate: firefox security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:3784 Moderate: thunderbird security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:2888 Important: thunderbird security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:1676-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13980-1 MozillaFirefox-126.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1858-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1770-1 Security update for MozillaFirefox 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
- openSUSE-SU-2024:13981-1 MozillaThunderbird-115.11.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- WID-SEC-2024-1151 Mozilla Firefox, Firefox ESR und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 22, 2025
- ALAS2-2024-2561 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 12, 2024
- ELSA-2024-3784 Moderate: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 11, 2024
- ELSA-2024-3783 Moderate: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 11, 2024
- ELSA-2024-2913 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 20, 2024
- ELSA-2024-2883 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 16, 2024
- ELSA-2024-2888 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 16, 2024
- ELSA-2024-2881 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 16, 2024
- NCSC-2024-0218 Kwetsbaarheden verholpen in Mozilla Firefox en Thunderbird NCSC-NL (Netherlands) · May 15, 2024
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1886082
- https://www.mozilla.org/security/advisories/mfsa2024-21/
- https://www.mozilla.org/security/advisories/mfsa2024-22/
- https://www.mozilla.org/security/advisories/mfsa2024-23/
- https://lists.debian.org/debian-lts-announce/2024/05/msg00010.html
- https://lists.debian.org/debian-lts-announce/2024/05/msg00012.html