Debian/thunderbird: medium 4.7
Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, a
Action: Upgrade thunderbird to 1:140.17.0esr-1~deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:140.17.0esr-1~deb13u1 | - |
Fixed versions
| 1:140.17.0esr-1~deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-100821#Debian:13/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-100821
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