Synopsis
Important: thunderbird security, bug fix, and enhancement update
Description
Mozilla Thunderbird is a standalone mail and newsgroup client.
Security Fix(es):
* libexpat: denial of service via crafted XML input (CVE-2026-45186)
Bug Fix(es) and Enhancement(s):
* Thunderbird ESR 153 rebase [rhel-10.2.z] (JIRA:Rocky Linux-175207)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected products
Rocky Linux 10 aarch64
Rocky Linux 10 ppc64le
Rocky Linux 10 riscv64
Rocky Linux 10 s390x
Rocky Linux 10 x86_64
Fixes
2468575
CVEs
CVE-2026-45186
Affected packages
Rocky Linux 10 x86_64 - AppStream
thunderbird-debuginfo-0:153.5.0-1.el10_2.x86_64.rpm
thunderbird-0:153.5.0-1.el10_2.x86_64.rpm
thunderbird-0:153.5.0-1.el10_2.src.rpm
thunderbird-debugsource-0:153.5.0-1.el10_2.x86_64.rpm
Rocky Linux 10 aarch64 - AppStream
thunderbird-debuginfo-0:153.5.0-1.el10_2.aarch64.rpm
thunderbird-0:153.5.0-1.el10_2.src.rpm
thunderbird-debugsource-0:153.5.0-1.el10_2.aarch64.rpm
thunderbird-0:153.5.0-1.el10_2.aarch64.rpm
Rocky Linux 10 ppc64le - AppStream
thunderbird-0:153.5.0-1.el10_2.src.rpm
thunderbird-debuginfo-0:153.5.0-1.el10_2.ppc64le.rpm
thunderbird-0:153.5.0-1.el10_2.ppc64le.rpm
thunderbird-debugsource-0:153.5.0-1.el10_2.ppc64le.rpm
Rocky Linux 10 riscv64 - AppStream
thunderbird-0:153.5.0-1.el10_2.src.rpm
Rocky Linux 10 s390x - AppStream
thunderbird-0:153.5.0-1.el10_2.src.rpm
thunderbird-debuginfo-0:153.5.0-1.el10_2.s390x.rpm
thunderbird-debugsource-0:153.5.0-1.el10_2.s390x.rpm
thunderbird-0:153.5.0-1.el10_2.s390x.rpm