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Test your applicationsUpgrade RHEL:10 thunderbird-debuginfo to version 0:140.12.0-1.el10_2 or higher.
This issue was patched in RHSA-2026:30846.
Note: Versions mentioned in the description apply only to the upstream thunderbird-debuginfo package and not the thunderbird-debuginfo package as distributed by RHEL.
See How to fix? for RHEL:10 relevant fixed versions and status.
Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.