CVE-2026-8945
published 2026-05-19CVE-2026-8945: Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
PriorityP337high7.5CVSS 3.1
AVNACHPRNUIRSUCHIHAH
EPSS
0.37%
29.2th percentile
Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 151 | Firefox 151 |
| mozilla | firefox | < 151.0.0 | 151.0.0 |
| mozilla | firefox_focus | < 151.0 | 151.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat7.5HIGH
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Red Hat
firefox: Sandbox escape in Firefox and Firefox Focus for Android
vendor_redhat·2026-05-19·CVSS 7.5
CVE-2026-8945 [HIGH] CWE-653 firefox: Sandbox escape in Firefox and Firefox Focus for Android
firefox: Sandbox escape in Firefox and Firefox Focus for Android
Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
Sandbox escape in Firefox and Firefox Focus for Android
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: firefox (Red Hat Enterprise Linux 6) - Not affected
Package: firefox (Red Hat Enterprise Linux 7) - Not affected
Package: firefox (Red Hat Enterprise Linux 8) - Not affected
Package: firefox
Mozilla
Mozilla Foundation Security Advisory 2026-46: CVE-2026-8945
vendor_mozilla·CVSS 7.5
CVE-2026-8945 [HIGH] Mozilla Foundation Security Advisory 2026-46: CVE-2026-8945
Mozilla Foundation Security Advisory 2026-46
CVE: CVE-2026-8945
Product: Firefox
Impact: high
Fixed in: Firefox 151
GHSA
GHSA-jvw5-v42q-rpwc: Sandbox escape in Firefox and Firefox Focus for Android
ghsa_unreviewed·2026-05-19
CVE-2026-8945 [HIGH] CWE-693 GHSA-jvw5-v42q-rpwc: Sandbox escape in Firefox and Firefox Focus for Android
Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
VulDB
Mozilla Firefox up to 150 on Android sandbox
vuldb·2026-05-19·CVSS 7.5
CVE-2026-8945 [HIGH] Mozilla Firefox up to 150 on Android sandbox
A vulnerability marked as critical has been reported in Mozilla Firefox up to 150 on Android. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in sandbox issue.
This vulnerability was named CVE-2026-8945. The attack may be initiated remotely. There is no available exploit.
It is suggested to upgrade the affected component.
No detection rules found.
No public exploits indexed.
2026-05-19
Published