CVE-2026-118309 — CRITICAL (9.6)

Q: How severe is CVE-2026-118309?

CVE-2026-118309 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-118309?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome, Google Android.

Vulnerability Description

Improper input validation in UI in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Score

9.6

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Chrome	< 156.0.8078.73
Google	Android	-

Related Weaknesses (CWE)

CWE-20

References

https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_Release NotesVendor Advisory
https://issues.chromium.org/issues/576133777Permissions Required

FAQ

What is CVE-2026-118309?

CVE-2026-118309 is a vulnerability with a CVSS score of 9.6 (CRITICAL). Improper input validation in UI in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chro...

How severe is CVE-2026-118309?

CVE-2026-118309 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-118309?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome, Google Android.