CVE-2026-118343: Input Validation
Published Oct 27, 2026
·Updated
Improper input validation in ReadingList in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Affected Software
1 affected component
Google Chrome<156.0.8078.73
Event History
Oct 27, 2026
CVE Published
via MITRE·11:03 PM
Data Sourced
via MITRE·11:03 PM
DescriptionWeakness
Data Sourced
via NVD·11:17 PM
DescriptionWeakness
Frequently Asked Questions
1
Which Chrome versions are affected?
Google Chrome versions prior to 156.0.8078.73 are affected.
2
What does an attacker need to exploit this issue?
The attacker would need to induce a user to load a crafted HTML page. The described impact is potential arbitrary code execution inside the Chrome sandbox.
3
Is this a sandbox escape?
No. The available description states that code execution would occur inside the sandbox; it does not state that the vulnerability enables escape from the sandbox.