EIP-2026-103493

PRE-CVE

Google Chrome 73.0.3683.39 / Chromium 74.0.3712.0 - 'ReadableStream' Internal Object Leak Type Confusion

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103493. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit leverages a prototype pollution vulnerability in Chromium's V8 bindings to leak an internal binding object, which is then used to redefine a method and trigger type confusion. The attack is executed within an AudioWorklet context.

Description

Google Chrome 73.0.3683.39 / Chromium 74.0.3712.0 - 'ReadableStream' Internal Object Leak Type Confusion

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldosmultiple
https://www.exploit-db.com/exploits/46653

This exploit leverages a prototype pollution vulnerability in Chromium's V8 bindings to leak an internal binding object, which is then used to redefine a method and trigger type confusion. The attack is executed within an AudioWorklet context.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Google Chrome 73.0.3683.39 (Beta) and Chromium 74.0.3712.0 (Dev)
No auth needed
Prerequisites: Experimental platform features flag enabled · User interaction (click) to trigger AudioContext
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026