Chrome PDFium Heap Buffer Overflow (<146.0.7680.153)
CVE-2026-4455 Published on March 20, 2026
Heap buffer overflow in PDFium in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file. (Chromium security severity: High)
Weakness Type
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-4455
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Affected Versions
Google Chrome:- Version 146.0.7680.153 and below 146.0.7680.153 is affected.