CVE-2026-8948

Public on 2026-05-19
Modified on 2026-05-20
Description
Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
8.2
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Firefox Extra firefox Not Affected
Amazon Linux 2023 firefox Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N