Debian/firefox-esr: critical 10
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thund
Action: Upgrade firefox-esr to 140.8.0esr-1~deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 140.8.0esr-1~deb13u1 | - |
Fixed versions
| 140.8.0esr-1~deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-2760#Debian:13/firefox-esr
- https://security-tracker.debian.org/tracker/CVE-2026-2760
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