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CVE-2026-8401

critical · 9.8

Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

9.8
CVSS
0.3%
EPSS (exploit prob.)
24th
EPSS percentile
2026-05-12
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-693CWE-653

Affected products

VendorProductAffected versions
mozillafirefox< 150.0.3

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-8401