Description
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 117 | 117 |
| Mozilla | Firefox ESR | unspecified – < 115.2 | 115.2 |
| Mozilla | Thunderbird | unspecified – < 115.2 | 115.2 |
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 | 115.2.0esr-1 | — |
| Debian 14 | thunderbird | 1:115.2.0-1 | — |
| Debian 13 | firefox-esr | 115.2.0esr-1 | — |
| Debian 13 | thunderbird | 1:115.2.0-1 | — |
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 | 1:115.3.1+build1-0ubuntu0.22.04.2 | USN-6405-1 |
| Ubuntu 20.04 LTS | firefox | 117.0+build2-0ubuntu0.20.04.1 | USN-6320-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 20.04 LTS | thunderbird | 1:115.3.1+build1-0ubuntu0.20.04.1 | USN-6405-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | firefox +2 | 102.15.0-1.el9_2 | RHSA-2023:4958, RHSA-2023:4955 |
| RHEL 8 | firefox +1 | 102.15.0-1.el8_8 | RHSA-2023:4954, RHSA-2023:4952 |
| RHEL 7 | firefox +1 | 102.15.0-1.el7_9 | RHSA-2023:5019, RHSA-2023:4945 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | firefox +1 | 102.15.0-1.el9_0 | RHSA-2023:4950, RHSA-2023:4947 |
| RHEL 8.6 EUS | firefox | 102.15.0-1.el8_6 | RHSA-2023:4959 |
| RHEL 8.4 TUS | firefox +1 | 102.15.0-1.el8_4 | RHSA-2023:4957, RHSA-2023:4956 |
| RHEL 8.4 E4S | firefox +1 | 102.15.0-1.el8_4 | RHSA-2023:4957, RHSA-2023:4956 |
| RHEL 8.4 AUS | firefox +1 | 102.15.0-1.el8_4 | RHSA-2023:4957, RHSA-2023:4956 |
| RHEL 8.2 TUS | firefox +1 | 102.15.0-1.el8_2 | RHSA-2023:4951, RHSA-2023:4946 |
| RHEL 8.2 E4S | firefox +1 | 102.15.0-1.el8_2 | RHSA-2023:4951, RHSA-2023:4946 |
| RHEL 8.2 AUS | firefox +1 | 102.15.0-1.el8_2 | RHSA-2023:4951, RHSA-2023:4946 |
| RHEL 8.1 E4S | firefox +1 | 102.15.0-1.el8_1 | RHSA-2023:4949, RHSA-2023:4948 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox +2 | 102.15.0-1.el9_2.alma | ALSA-2023:4958, ALSA-2023:4955 |
| AlmaLinux 8 | firefox +1 | 102.15.0-1.el8_8.alma | ALSA-2023:4954, ALSA-2023:4952 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | firefox +1 | 102.15.0-1.el8_8 | RLSA-2023:4954, RLSA-2023:4952 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLES 15 SP5 | MozillaThunderbird | 115.2.2-150200.8.130.1 | SUSE-SU-2023:3664-1 |
| SLES 15 SP4 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLES 15 SP4 | MozillaThunderbird | 115.2.2-150200.8.130.1 | SUSE-SU-2023:3664-1 |
| SLES 15 SP3 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLES 15 SP2 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLES 15 SP1 | MozillaFirefox | 115.2.0-150000.150.100.1 | SUSE-SU-2023:3562-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 115.2.0-112.176.1 | SUSE-SU-2023:3559-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLES for SAP 15 SP1 | MozillaFirefox | 115.2.0-150000.150.100.1 | SUSE-SU-2023:3562-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 115.2.0-112.176.1 | SUSE-SU-2023:3559-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SLE HPC 15 SP1 | MozillaFirefox | 115.2.0-150000.150.100.1 | SUSE-SU-2023:3562-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| SUSE Enterprise Storage 7 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 117.0-1.1 | openSUSE-SU-2024:13176-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 115.2.0-1.1 | openSUSE-SU-2024:13202-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 115.2.2-150200.8.130.1 | SUSE-SU-2023:3664-1 |
| openSUSE Leap 15.4 | MozillaFirefox | 115.2.0-150200.152.102.1 | SUSE-SU-2023:3519-1 |
| openSUSE Leap 15.4 | MozillaThunderbird | 115.2.2-150200.8.130.1 | SUSE-SU-2023:3664-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | firefox-esr | 115.2.0-r0 | — |
| Alpine v3.22 | firefox-esr | 115.2.0-r0 | — |
| Alpine v3.21 | firefox-esr | 115.2.0-r0 | — |
| Alpine v3.20 | firefox-esr | 115.2.0-r0 | — |
| Alpine v3.19 | firefox-esr | 115.2.0-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | firefox-esr | 115.2.0-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox +2 | 102.15.0-1.0.1.el9_2 | ELSA-2023-4958, ELSA-2023-4955 |
| Oracle Linux 8 | firefox +1 | 102.15.0-1.0.1.el8_8 | ELSA-2023-4954, ELSA-2023-4952 |
| Oracle Linux 7 | firefox +1 | 102.15.0-1.0.1.el7_9 | ELSA-2023-5019, ELSA-2023-4945 |
Advisories 37
- ALSA-2023:4958 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4955 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4952 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4954 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:5019 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:4945 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6405-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-6320-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- RLSA-2023:4952 Important: firefox security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2023:4954 Important: thunderbird security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2023:3559-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3562-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13202-1 MozillaThunderbird-115.2.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3664-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13176-1 MozillaFirefox-117.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3519-1 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
- RHSA-2023:4959 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4958 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4956 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4957 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4954 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4955 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4951 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4952 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4950 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4948 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4949 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4947 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4946 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2023-2202 Mozilla Firefox und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 15, 2024
- ELSA-2023-5019 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 7, 2023
- ELSA-2023-4955 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 6, 2023
- ELSA-2023-4958 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 6, 2023
- ELSA-2023-4954 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 6, 2023
- ELSA-2023-4952 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 6, 2023
- ELSA-2023-4945 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 5, 2023