Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
[ { "events": [ { "introduced": "0" }, { "fixed": "147.0" } ] }, { "events": [ { "introduced": "0" }, { "fixed": "147.0" } ] } ]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-0881.json"