cbcvebase.
CVE-2026-100760
published 2026-09-29

CVE-2026-100760: Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and…

PriorityP348critical9.6CVSS 3.1
AVNACLPRNUIRSCCHIHAH
EPSS
0.32%
23.1th percentile
Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

Affected

4 ranges
VendorProductVersion rangeFixed in
mozillafirefox< Firefox 157Firefox 157
mozillafirefox_esr< Firefox ESR 153.4Firefox ESR 153.4
mozillathunderbird< Thunderbird 157Thunderbird 157
mozillathunderbird< Thunderbird 153.4Thunderbird 153.4
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