CVE-2026-92238
Fixed in a distro release EPSS <1%CVSS 9.8
A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential memory safety violations. This vulnerability was fixed in Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
Products: Mozilla Thunderbird
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | thunderbird | 140.16.0-1.el10_2.alma.1 |
| AlmaLinux 8 | thunderbird | 140.16.0-1.el8_10.alma.1 |
| AlmaLinux 9 | thunderbird | 140.16.0-1.el9_8.alma.1 |
| Debian 12 | thunderbird | 1:140.16.0esr-1~deb12u1 |
| Debian 13 | thunderbird | 1:140.16.0esr-1~deb13u1 |
| Debian 14 | thunderbird | 1:153.3.0esr-1 |
| Red Hat Enterprise Linux 10.2 | thunderbird | 0:140.16.0-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | thunderbird-debuginfo | 0:140.16.0-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | thunderbird-debugsource | 0:140.16.0-1.el10_2 |
| Red Hat Enterprise Linux 8 | thunderbird | 0:140.16.0-1.el8_10 |
| Red Hat Enterprise Linux 8 | thunderbird-debuginfo | 0:140.16.0-1.el8_10 |
| Red Hat Enterprise Linux 8 | thunderbird-debugsource | 0:140.16.0-1.el8_10 |
| Red Hat Enterprise Linux 9 | thunderbird | 0:140.16.0-1.el9_8 |
| Red Hat Enterprise Linux 9 | thunderbird-debuginfo | 0:140.16.0-1.el9_8 |
| Red Hat Enterprise Linux 9 | thunderbird-debugsource | 0:140.16.0-1.el9_8 |
| Red Hat Enterprise Linux eus 10.0 | thunderbird | 0:140.16.0-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | thunderbird-debuginfo | 0:140.16.0-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | thunderbird-debugsource | 0:140.16.0-1.el10_0 |
| Red Hat rhel aus 8.4 | thunderbird | 0:140.16.0-1.el8_4 |
| Red Hat rhel aus 8.4 | thunderbird-debuginfo | 0:140.16.0-1.el8_4 |
| Red Hat rhel aus 8.4 | thunderbird-debugsource | 0:140.16.0-1.el8_4 |
| Red Hat rhel aus 8.6 | thunderbird | 0:140.16.0-1.el8_6 |
| Red Hat rhel aus 8.6 | thunderbird-debuginfo | 0:140.16.0-1.el8_6 |
| Red Hat rhel aus 8.6 | thunderbird-debugsource | 0:140.16.0-1.el8_6 |
| Red Hat rhel e4s 8.8 | thunderbird | 0:140.16.0-1.el8_8 |
| Red Hat rhel e4s 8.8 | thunderbird-debuginfo | 0:140.16.0-1.el8_8 |
| Red Hat rhel e4s 8.8 | thunderbird-debugsource | 0:140.16.0-1.el8_8 |
| Red Hat rhel e4s 9.2 | thunderbird | 0:140.16.0-1.el9_2 |
| Red Hat rhel e4s 9.2 | thunderbird-debuginfo | 0:140.16.0-1.el9_2 |
| Red Hat rhel e4s 9.2 | thunderbird-debugsource | 0:140.16.0-1.el9_2 |
| Red Hat rhel e4s 9.4 | thunderbird | 0:140.16.0-1.el9_4 |
| Red Hat rhel e4s 9.4 | thunderbird-debuginfo | 0:140.16.0-1.el9_4 |
| Red Hat rhel e4s 9.4 | thunderbird-debugsource | 0:140.16.0-1.el9_4 |
| Red Hat rhel eus 9.6 | thunderbird | 0:140.16.0-1.el9_6 |
| Red Hat rhel eus 9.6 | thunderbird-debuginfo | 0:140.16.0-1.el9_6 |
| Red Hat rhel eus 9.6 | thunderbird-debugsource | 0:140.16.0-1.el9_6 |
| Red Hat rhel eus long life 8.4 | thunderbird | 0:140.16.0-1.el8_4 |
| Red Hat rhel eus long life 8.4 | thunderbird-debuginfo | 0:140.16.0-1.el8_4 |
| Red Hat rhel eus long life 8.4 | thunderbird-debugsource | 0:140.16.0-1.el8_4 |
| Red Hat rhel eus long life 8.6 | thunderbird | 0:140.16.0-1.el8_6 |
| Red Hat rhel eus long life 8.6 | thunderbird-debuginfo | 0:140.16.0-1.el8_6 |
| Red Hat rhel eus long life 8.6 | thunderbird-debugsource | 0:140.16.0-1.el8_6 |
| Red Hat rhel tus 8.8 | thunderbird | 0:140.16.0-1.el8_8 |
| Red Hat rhel tus 8.8 | thunderbird-debuginfo | 0:140.16.0-1.el8_8 |
| Red Hat rhel tus 8.8 | thunderbird-debugsource | 0:140.16.0-1.el8_8 |
| Rocky Linux 10 | thunderbird | 0:140.16.0-1.el10_2 |
| Rocky Linux 8 | thunderbird | 0:140.16.0-1.el8_10 |
| Rocky Linux 9 | thunderbird | 0:140.16.0-1.el9_8 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | MozillaThunderbird | 153.4.0-150400.13.6.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | MozillaThunderbird | 153.4.0-150400.13.6.1 |
| Ubuntu 18.04 LTS | mozjs38 | no fix |
| Ubuntu 18.04 LTS | mozjs52 | no fix |
| Ubuntu 20.04 LTS | mozjs52 | no fix |
| Ubuntu 20.04 LTS | mozjs68 | no fix |
| Ubuntu 22.04 LTS | mozjs102 | no fix |
| Ubuntu 22.04 LTS | mozjs78 | no fix |
| Ubuntu 22.04 LTS | mozjs91 | no fix |
| Ubuntu 22.04 LTS | thunderbird | no fix |
| Ubuntu 24.04 LTS | mozjs102 | no fix |
| Ubuntu 24.04 LTS | mozjs115 | no fix |
| openSUSE Tumbleweed | MozillaThunderbird | 140.16.0-1.1 |