Description
Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | — | 115.35.1 |
| Mozilla | Thunderbird | — | 140.10.1 |
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 | 140.10.1esr-1 | — |
| Debian 14 | thunderbird | 1:140.10.1esr-1 | — |
| Debian 13 | firefox-esr | 140.10.1esr-1~deb13u1 | — |
| Debian 13 | thunderbird | 1:140.10.1esr-1~deb13u1 | — |
| Debian 12 | firefox-esr | 140.10.1esr-1~deb12u1 | — |
| Debian 12 | thunderbird | 1:140.10.1esr-1~deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +3 | No fix yet | — |
| 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 +1 | 140.10.1-1.el10_2 | RHSA-2026:19157, RHSA-2026:19153 |
| RHEL 9 | firefox +2 | 140.10.1-1.el9_8 | RHSA-2026:19370, RHSA-2026:19348 |
| RHEL 8 | firefox +1 | 140.10.1-1.el8_10 | RHSA-2026:20586, RHSA-2026:19588 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | firefox +1 | 140.10.1-1.el10_0 | RHSA-2026:24719, RHSA-2026:22408 |
| RHEL 9.6 EUS | firefox +2 | 140.10.1-1.el9_6 | RHSA-2026:24721, RHSA-2026:22409 |
| RHEL 9.4 E4S | firefox +2 | 140.10.1-1.el9_4 | RHSA-2026:24846, RHSA-2026:22324 |
| RHEL 9.2 E4S | firefox +2 | 140.10.1-1.el9_2 | RHSA-2026:24844, RHSA-2026:22410 |
| RHEL 9.0 E4S | firefox | 140.10.1-1.el9_0 | RHSA-2026:21743 |
| RHEL 8.8 TUS | firefox +1 | 140.10.1-1.el8_8 | RHSA-2026:24717, RHSA-2026:22847 |
| RHEL 8.8 E4S | firefox +1 | 140.10.1-1.el8_8 | RHSA-2026:24717, RHSA-2026:22847 |
| RHEL 8.6 EUS Long Life | firefox +1 | 140.10.1-1.el8_6 | RHSA-2026:25014, RHSA-2026:24345 |
| RHEL 8.6 AUS | firefox +1 | 140.10.1-1.el8_6 | RHSA-2026:25014, RHSA-2026:24345 |
| RHEL 8.4 EUS Long Life | firefox +1 | 140.10.1-1.el8_4 | RHSA-2026:24718, RHSA-2026:22712 |
| RHEL 8.4 AUS | firefox +1 | 140.10.1-1.el8_4 | RHSA-2026:24718, RHSA-2026:22712 |
| RHEL 7 ELS | firefox | 140.10.1-1.el7_9 | RHSA-2026:22708 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | firefox | 140.10.1-1.el10_2 | ALSA-2026:19157 |
| AlmaLinux 10 | thunderbird | 140.10.1-1.el10_2.alma.1 | ALSA-2026:19153 |
| AlmaLinux 9 | firefox +2 | 140.10.1-1.el9_8.alma.1 | ALSA-2026:19370, ALSA-2026:19348 |
| AlmaLinux 8 | firefox +1 | 140.10.1-1.el8_10.alma.1 | ALSA-2026:20586, ALSA-2026:19588 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | thunderbird | 140.10.1-1.el10_2 | RLSA-2026:19153 |
| Rocky Linux 9 | firefox +1 | 140.10.1-1.el9_8 | RLSA-2026:19370, RLSA-2026:19348 |
| Rocky Linux 8 | firefox +1 | 140.10.1-1.el8_10 | RLSA-2026:20586, RLSA-2026:19588 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 150.0.1-1.1 | openSUSE-SU-2026:10668-1 |
| openSUSE Tumbleweed | firefox-esr +1 | 140.10.1-1.1 | openSUSE-SU-2026:10687-1, openSUSE-SU-2026:10661-1 |
| openSUSE Leap 16.0 | MozillaThunderbird | 140.12.0-bp160.1.1 | openSUSE-SU-2026:21168-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | firefox | 140.10.1-1.amzn2023.0.1 | ALAS2023-2026-1652 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | firefox +1 | 140.12.0-1.0.1.el10_2 | ELSA-2026-19157, ELSA-2026-19153 |
| Oracle Linux 9 | firefox +1 | 140.12.0-1.0.1.el9_8 | ELSA-2026-19370 |
| Oracle Linux 9 | thunderbird | 140.11.0-1.0.1.el9_8 | ELSA-2026-19348 |
| Oracle Linux 8 | firefox +1 | 140.10.1-1.0.1.el8_10 | ELSA-2026-20586, ELSA-2026-19588 |
| Oracle Linux 7 | firefox | 140.10.1-1.0.1.el7_9 | ELSA-2026-22708 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | firefox | 140.10.1-r0 | — |
Advisories 48
- WID-SEC-2026-2455 Oracle Solaris Drittanbieterkomponenten: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- WID-SEC-2026-1296 Mozilla Firefox und Firefox ESR: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
- ALSA-2026:19153 Important: thunderbird security update AlmaLinux Security Advisories · Nov 6, 2026
- ALSA-2026:19157 Important: firefox security update AlmaLinux Security Advisories · Nov 6, 2026
- ALSA-2026:19370 Important: firefox security update AlmaLinux Security Advisories · Nov 6, 2026
- ALSA-2026:19348 Important: thunderbird security update AlmaLinux Security Advisories · Nov 6, 2026
- ALSA-2026:19588 Important: firefox security update AlmaLinux Security Advisories · Nov 6, 2026
- ALSA-2026:20586 Important: thunderbird security update AlmaLinux Security Advisories · Nov 6, 2026
- RHSA-2026:22324 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:24718 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:24719 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:22409 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:22410 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:24846 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:19153 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:19157 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:24717 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:25014 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:24844 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:24721 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:24345 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:22847 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:22712 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:22708 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:22408 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:21743 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:20586 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:19588 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:19370 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- RHSA-2026:19348 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jul 29, 2026
- ELSA-2026-19153 Important: thunderbird security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 20, 2026
- ELSA-2026-19157 Important: firefox security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 17, 2026
- WID-SEC-2026-1730 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Jul 16, 2026
- openSUSE-SU-2026:21168-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Jun 30, 2026
- ELSA-2026-19370 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jun 29, 2026
- ELSA-2026-19348 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jun 26, 2026
- ELSA-2026-22708 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 15, 2026
- RLSA-2026:19153 Important: thunderbird security update Rocky Linux Security Advisories · May 29, 2026
- RLSA-2026:20586 Important: thunderbird security update Rocky Linux Security Advisories · May 29, 2026
- RLSA-2026:19370 Important: firefox security update Rocky Linux Security Advisories · May 28, 2026
- RLSA-2026:19348 Important: thunderbird security update Rocky Linux Security Advisories · May 28, 2026
- ELSA-2026-20586 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 27, 2026
- RLSA-2026:19588 Important: firefox security update Rocky Linux Security Advisories · May 23, 2026
- ELSA-2026-19588 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2026
- ALAS2023-2026-1652 Important: firefox security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 13, 2026
- openSUSE-SU-2026:10687-1 MozillaThunderbird-140.10.1-1.1 on GA media SUSE / openSUSE Security Updates · May 6, 2026
- openSUSE-SU-2026:10668-1 MozillaFirefox-150.0.1-1.1 on GA media SUSE / openSUSE Security Updates · May 5, 2026
- openSUSE-SU-2026:10661-1 firefox-esr-140.10.1-1.1 on GA media SUSE / openSUSE Security Updates · May 1, 2026
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2027433
- https://www.mozilla.org/security/advisories/mfsa2026-35/
- https://www.mozilla.org/security/advisories/mfsa2026-36/
- https://www.mozilla.org/security/advisories/mfsa2026-37/
- https://www.mozilla.org/security/advisories/mfsa2026-38/
- https://www.mozilla.org/security/advisories/mfsa2026-39/