CVE-2026-126840
Description
Out of bounds write in Network in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Is your site exposed to CVE-2026-126840?
Run a free security scan — no signup, results in seconds.
Weakness Type (CWE)
References
Frequently Asked Questions
What is CVE-2026-126840? +
How do I check if I'm vulnerable to CVE-2026-126840? +
Related Vulnerabilities
The GUIX binary resource (theme) loader sizes its arena and populates it in two separate passes that traverse the resource …
LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the …
LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. …
A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the …
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a …
The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. …