Same-origin policy bypass in the DOM: Networking component
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
References
https://access.redhat.com/security/cve/CVE-2026-8948https://bugzilla.mozilla.org/show_bug.cgi?id=2038803https://bugzilla.redhat.com/show_bug.cgi?id=2479850https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8948.jsonhttps://www.mozilla.org/security/advisories/mfsa2026-46/https://www.mozilla.org/security/advisories/mfsa2026-50/