High severity · published Oct 27, 2026
CVE-2026-118347
Use after free in FileSystem in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page
New
8.8
CVSS
0.2%
EPSS
No
On KEV
Description
Use after free in FileSystem in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Chrome · Google
156.0.8078.73 before 156.0.8078.73 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-118347
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-118347
chromereleases.googleblog.com
https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_0562499947.html
issues.chromium.org
https://issues.chromium.org/issues/574911589
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