Description
Thunderbird executed `javascript:` URLs when used in `object` and `embed` tags. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | — | 128.13 |
| Mozilla | Thunderbird | — | 128.13 |
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 | 128.13.0esr-1 | — |
| Debian 14 | thunderbird | 1:128.13.0esr-1 | — |
| Debian 13 | firefox-esr | 128.13.0esr-1 | — |
| Debian 13 | thunderbird | 1:128.13.0esr-1 | — |
| Debian 12 | firefox-esr | 128.13.0esr-1~deb12u1 | DSA-5964-1 |
| Debian 12 | thunderbird | 1:128.13.0esr-1~deb12u1 | DSA-5966-1 |
| Debian 11 | firefox-esr | 128.13.0esr-1~deb11u1 | DLA-4250-1 |
| Debian 11 | thunderbird | 1:128.13.0esr-1~deb11u1 | DLA-4253-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +2 | No fix yet | — |
| Ubuntu 22.04 LTS | thunderbird | 1:140.7.1+build1-0ubuntu0.22.04.1 | — |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | firefox | 128.13.0-1.el10_0 | RHSA-2025:11797 |
| RHEL 10 | thunderbird | 128.13.0-3.el10_0 | RHSA-2025:12188 |
| RHEL 9 | firefox +1 | 128.13.0-1.el9_6 | RHSA-2025:11748 |
| RHEL 9 | thunderbird | 128.13.0-3.el9_6 | RHSA-2025:12187 |
| RHEL 8 | firefox | 128.13.0-1.el8_10 | RHSA-2025:11747 |
| RHEL 8 | thunderbird | 128.13.0-3.el8_10 | RHSA-2025:13676 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | firefox +1 | 128.13.0-1.el9_4 | RHSA-2025:12044 |
| RHEL 9.4 EUS | thunderbird | 128.13.0-3.el9_4 | RHSA-2025:13649 |
| RHEL 9.2 E4S | firefox +1 | 128.13.0-1.el9_2 | RHSA-2025:12045 |
| RHEL 9.2 E4S | thunderbird | 128.13.0-3.el9_2 | RHSA-2025:13648 |
| RHEL 9.0 E4S | firefox | 128.13.0-1.el9_0 | RHSA-2025:12046 |
| RHEL 9.0 E4S | thunderbird | 128.13.0-3.el9_0 | RHSA-2025:13647 |
| RHEL 8.8 TUS | firefox | 128.13.0-1.el8_8 | RHSA-2025:12360 |
| RHEL 8.8 TUS | thunderbird | 128.13.0-3.el8_8 | RHSA-2025:13650 |
| RHEL 8.8 E4S | firefox | 128.13.0-1.el8_8 | RHSA-2025:12360 |
| RHEL 8.8 E4S | thunderbird | 128.13.0-3.el8_8 | RHSA-2025:13650 |
| RHEL 8.6 TUS | firefox | 128.13.0-1.el8_6 | RHSA-2025:12361 |
| RHEL 8.6 TUS | thunderbird | 128.13.0-3.el8_6 | RHSA-2025:13651 |
| RHEL 8.6 E4S | firefox | 128.13.0-1.el8_6 | RHSA-2025:12361 |
| RHEL 8.6 E4S | thunderbird | 128.13.0-3.el8_6 | RHSA-2025:13651 |
| RHEL 8.6 AUS | firefox | 128.13.0-1.el8_6 | RHSA-2025:12361 |
| RHEL 8.6 AUS | thunderbird | 128.13.0-3.el8_6 | RHSA-2025:13651 |
| RHEL 8.4 EUS Long Life | firefox | 128.13.0-1.el8_4 | RHSA-2025:12302 |
| RHEL 8.4 EUS Long Life | thunderbird | 128.13.0-3.el8_4 | RHSA-2025:13646 |
| RHEL 8.4 AUS | firefox | 128.13.0-1.el8_4 | RHSA-2025:12302 |
| RHEL 8.4 AUS | thunderbird | 128.13.0-3.el8_4 | RHSA-2025:13646 |
| RHEL 8.2 AUS | firefox | 128.13.0-1.el8_2 | RHSA-2025:12353 |
| RHEL 8.2 AUS | thunderbird | 128.13.0-3.el8_2 | RHSA-2025:13645 |
| RHEL 7 ELS | firefox | 128.13.0-1.el7_9 | RHSA-2025:12278 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | firefox | 128.13.0-1.el10_0 | ALSA-2025:11797 |
| AlmaLinux 10 | thunderbird | 128.13.0-3.el10_0.alma.1 | ALSA-2025:12188 |
| AlmaLinux 9 | firefox +1 | 128.13.0-1.el9_6.alma.1 | ALSA-2025:11748 |
| AlmaLinux 9 | thunderbird | 128.13.0-3.el9_6.alma.1 | ALSA-2025:12187 |
| AlmaLinux 8 | firefox | 128.13.0-1.el8_10.alma.1 | ALSA-2025:11747 |
| AlmaLinux 8 | thunderbird | 128.13.0-3.el8_10.alma.1 | ALSA-2025:13676 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | firefox | 128.13.0-1.el10_0 | RLSA-2025:11797 |
| Rocky Linux 10 | thunderbird | 128.13.0-3.el10_0 | RLSA-2025:12188 |
| Rocky Linux 9 | firefox | 128.13.0-1.el9_6 | RLSA-2025:11748 |
| Rocky Linux 9 | thunderbird | 128.13.0-3.el9_6 | RLSA-2025:12187 |
| Rocky Linux 8 | firefox | 128.13.0-1.el8_10 | RLSA-2025:11747 |
| Rocky Linux 8 | thunderbird | 128.13.0-3.el8_10 | RLSA-2025:13676 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP7 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP7 | MozillaThunderbird | 140.1.0-150200.8.230.1 | SUSE-SU-2025:02546-1 |
| SLES 15 SP7 | pipewire | 0.3.6-150200.3.11.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP6 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP6 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP6 | MozillaThunderbird | 140.1.0-150200.8.230.1 | SUSE-SU-2025:02546-1 |
| SLES 15 SP6 | pipewire | 0.3.6-150200.3.11.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP5 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP5 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP5 | pipewire | 0.3.64-150500.3.7.2 | SUSE-SU-2025:02529-1 |
| SLES 15 SP5 | xdg-desktop-portal | 1.16.0-150500.3.8.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP4 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP4 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP4 | pipewire | 0.3.49-150400.3.7.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP4 | xdg-desktop-portal | 1.10.1-150400.3.8.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP3 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP3 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP3 | pipewire | 0.3.24-150300.4.8.1 | SUSE-SU-2025:02529-1 |
| SLES 15 SP3 | xdg-desktop-portal | 1.8.0-150200.5.8.1 | SUSE-SU-2025:02529-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 140.1.0-112.273.1 | SUSE-SU-2025:02531-1 |
| SLES for SAP 16.0 | mozjs128 | 128.14.0-160000.1.1 | SUSE-SU-2025:21170-1 |
| SLES for SAP 15 SP5 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP5 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP5 | pipewire | 0.3.64-150500.3.7.2 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP5 | xdg-desktop-portal | 1.16.0-150500.3.8.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP4 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP4 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP4 | pipewire | 0.3.49-150400.3.7.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP4 | xdg-desktop-portal | 1.10.1-150400.3.8.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP3 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP3 | pipewire | 0.3.24-150300.4.8.1 | SUSE-SU-2025:02529-1 |
| SLES for SAP 15 SP3 | xdg-desktop-portal | 1.8.0-150200.5.8.1 | SUSE-SU-2025:02529-1 |
| SLES 16.0 | mozjs128 | 128.14.0-160000.1.1 | SUSE-SU-2025:21170-1 |
| SLE HPC 15 SP5 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP5 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP5 | pipewire | 0.3.64-150500.3.7.2 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP5 | xdg-desktop-portal | 1.16.0-150500.3.8.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP4 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP4 | pipewire | 0.3.49-150400.3.7.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP4 | xdg-desktop-portal | 1.10.1-150400.3.8.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP3 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP3 | pipewire | 0.3.24-150300.4.8.1 | SUSE-SU-2025:02529-1 |
| SLE HPC 15 SP3 | xdg-desktop-portal | 1.8.0-150200.5.8.1 | SUSE-SU-2025:02529-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| SUSE Enterprise Storage 7.1 | pipewire | 0.3.24-150300.4.8.1 | SUSE-SU-2025:02529-1 |
| SUSE Enterprise Storage 7.1 | xdg-desktop-portal | 1.8.0-150200.5.8.1 | SUSE-SU-2025:02529-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 141.0-1.1 | openSUSE-SU-2025:15386-1 |
| openSUSE Tumbleweed | firefox-esr +1 | 140.1.0-1.1 | openSUSE-SU-2025:15383-1, openSUSE-SU-2025:15371-1 |
| openSUSE Tumbleweed | mozjs128 | 128.13.0-1.1 | openSUSE-SU-2025:15387-1 |
| openSUSE Leap 16.0 | mozjs128 | 128.14.0-160000.1.1 | openSUSE-SU-2025:20135-1 |
| openSUSE Leap 15.6 | MozillaFirefox | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 |
| openSUSE Leap 15.6 | MozillaFirefox-branding-SLE | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 |
| openSUSE Leap 15.6 | MozillaThunderbird | 140.1.0-150200.8.230.1 | SUSE-SU-2025:02546-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | firefox | 140.1.0-1.amzn2023.0.2 | ALAS2023-2025-1148 |
| Amazon Linux 2 | thunderbird | 128.13.0-1.amzn2.0.1 | ALAS2-2025-2946 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | firefox | 128.13.0-1.0.1.el10_0 | ELSA-2025-11797 |
| Oracle Linux 10 | thunderbird | 128.13.0-3.0.1.el10_0 | ELSA-2025-12188 |
| Oracle Linux 9 | firefox +1 | 128.13.0-1.0.1.el9_6 | ELSA-2025-11748 |
| Oracle Linux 9 | thunderbird | 128.13.0-3.0.1.el9_6 | ELSA-2025-12187 |
| Oracle Linux 8 | firefox | 128.13.0-1.0.1.el8_10 | ELSA-2025-11747 |
| Oracle Linux 8 | thunderbird | 128.13.0-3.0.1.el8_10 | ELSA-2025-13676 |
| Oracle Linux 7 | firefox | 128.13.0-1.0.1.el7_9 | ELSA-2025-12278 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | firefox | 128.13-r0 | — |
Advisories 50
- ALSA-2025:12188 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:11797 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:12187 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:11748 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:11747 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:13676 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:13676 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:13651 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:13649 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:13650 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:13647 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:13648 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:13645 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:13646 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12361 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12360 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12353 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12302 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12278 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12188 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12187 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12046 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12045 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:12044 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:11797 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:11747 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:11748 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- WID-SEC-2025-1623 Mozilla Firefox , Firefox ESR und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 11, 2026
- openSUSE-SU-2025:20135-1 Security update for mozjs128 SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15387-1 libmozjs-128-0-128.13.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15383-1 MozillaThunderbird-140.1.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15386-1 MozillaFirefox-141.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15371-1 firefox-esr-140.1.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21170-1 Security update for mozjs128 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02529-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4253-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4250-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5964-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5966-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2025:02546-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02531-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2025:12188 Important: thunderbird security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:11797 Important: firefox security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:12187 Important: thunderbird security update Rocky Linux Security Advisories · Oct 7, 2025
- RLSA-2025:11748 Important: firefox security update Rocky Linux Security Advisories · Oct 4, 2025
- RLSA-2025:13676 Important: thunderbird security update Rocky Linux Security Advisories · Sep 8, 2025
- ALAS2023-2025-1148 Important: firefox security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 18, 2025
- ELSA-2025-13676 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 12, 2025
- ELSA-2025-12278 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 7, 2025
- ALAS2-2025-2946 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 4, 2025
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1928021
- https://www.mozilla.org/security/advisories/mfsa2025-56/
- https://www.mozilla.org/security/advisories/mfsa2025-58/
- https://www.mozilla.org/security/advisories/mfsa2025-59/
- https://www.mozilla.org/security/advisories/mfsa2025-61/
- https://www.mozilla.org/security/advisories/mfsa2025-62/
- https://www.mozilla.org/security/advisories/mfsa2025-63/