Debian/thunderbird: critical 9.6
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Fir
Action: Upgrade thunderbird to 1:153.4.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:153.4.0esr-1 | - |
Fixed versions
| 1:153.4.0esr-1 |
Sources
- osv: DEBIAN-CVE-2026-100781#Debian:14/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-100781
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