Debian/firefox-esr: high 8.1
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
Action: Upgrade firefox-esr to 140.7.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 140.7.0esr-1 | - |
Fixed versions
| 140.7.0esr-1 |
Sources
- osv: DEBIAN-CVE-2026-0877#Debian:14/firefox-esr
- https://security-tracker.debian.org/tracker/CVE-2026-0877
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