Rocky Linux 10 users need to apply an important security patch for Thunderbird right away. Wireshark also receives a moderate severity update on that same platform, while WebKit2GTK3 gets a critical fix tailored specifically for Rocky Linux 9. You will find detailed CVSS ratings attached to every vulnerability listed in these advisories.

RLSA-2026:9638: Important: thunderbird security update
RLSA-2026:9666: Moderate: wireshark security update
RLSA-2026:9692: Important: webkit2gtk3 security update

RLSA-2026:9638: Important: thunderbird security update

An update is available for thunderbird.
This update affects Rocky Linux 10.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:9638: Important: thunderbird security update

RLSA-2026:9666: Moderate: wireshark security update

An update is available for wireshark.
This update affects Rocky Linux 10.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:9666: Moderate: wireshark security update

RLSA-2026:9692: Important: webkit2gtk3 security update

An update is available for webkit2gtk3.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:9692: Important: webkit2gtk3 security update