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Vulnerability record · CVE-2026-92034 · published 15 September 2026
CVE-2026-92034: Origin validation error vulnerability
Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
9.1 CVSS 3.1 Critical EPSS 0.29% · top 80.4% CWE-346 · Origin validation error Awaiting Analysis
9.1CVSS 3.1 base score
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
21 Sep 2026Last modified by NVD
Description
Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
References
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Source: NIST National Vulnerability Database (record CVE-2026-92034), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
