Debian/thunderbird: critical 9.8
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Action: Upgrade thunderbird to 1:140.9.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:140.9.0esr-1 | - |
Fixed versions
| 1:140.9.0esr-1 |
Sources
- osv: DEBIAN-CVE-2026-4698#Debian:14/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-4698
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