CVE-2026-100760

critical · 9.6

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.

9.6

CVSS

0.2%

EPSS (exploit prob.)

4th

EPSS percentile

2026-09-29

Published

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

Weaknesses

CWE-693

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2058017
https://www.mozilla.org/security/advisories/mfsa2026-100/
https://www.mozilla.org/security/advisories/mfsa2026-101/
https://www.mozilla.org/security/advisories/mfsa2026-103/
https://www.mozilla.org/security/advisories/mfsa2026-97/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-100760