Is CVE-2026-100826 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-100826?

CVE-2026-100826 has a CVSS v3 severity of MEDIUM (6.5).

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Description

Denial-of-service in the Storage: StorageManager component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.