Off-by-one in Google Chromium - CVE-2026-126889
Published: November 12, 2026
Vulnerability identifier: #VU165969
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-126889
CWE-ID: CWE-193
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to potentially cause a denial of service.
The vulnerability exists due to an off-by-one error in V8 when processing input. A remote attacker can supply crafted input to trigger incorrect boundary handling that may cause a denial of service.
Affected software
Google Chromium
Google Chrome
Google Chrome
How to mitigate CVE-2026-126889
Install security update from vendor's website.
Google Chromium - update to 157.0.8103.78
Google Chrome - update to 157.0.8103.78
Google Chrome - update to 157.0.8103.78