CVE-2026-5865

HIGH

Google Chrome <147.0.7727.55 - Type Confusion

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2026-5865. PoCs published by adminlove520, Crihexe, XZ1r0.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2026-5865, targeting a V8 JavaScript engine vulnerability. The exploit leverages type confusion and memory corruption to achieve arbitrary read/write primitives, ultimately leading to remote code execution via WebAssembly manipulation.

Description

Type Confusion in V8 in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Exploits (3)

github WORKING POC 4 stars
by adminlove520 · pythonpoc
https://github.com/adminlove520/CVE-Poc_All_in_One/tree/main/2026/CVE-2026-5865

This repository contains a functional exploit for CVE-2026-5865, targeting a V8 JavaScript engine vulnerability. The exploit leverages type confusion and memory corruption to achieve arbitrary read/write primitives, ultimately leading to remote code execution via WebAssembly manipulation.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: V8 JavaScript Engine (likely Chrome/Chromium)
No auth needed
Prerequisites: Access to a vulnerable V8 engine (e.g., Chrome/Chromium with specific version) · Ability to execute JavaScript in the target environment
devstral-2 · analyzed Jun 03, 2026 Full analysis →
nomisec WORKING POC 1 stars
by Crihexe · poc
https://github.com/Crihexe/v8-poc-CVE-2026-5865

This is a functional exploit PoC for CVE-2026-5865 targeting a V8 JavaScript engine vulnerability. It demonstrates a type confusion attack to achieve arbitrary read/write primitives, leading to potential remote code execution (RCE).

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Racy
Target: V8 JavaScript Engine (likely Chrome/Chromium)
No auth needed
Prerequisites: V8 engine with specific optimizations enabled · Memory layout conditions met
devstral-2 · analyzed May 10, 2026 Full analysis →
github WORKING POC
by XZ1r0 · pythonpoc
https://github.com/XZ1r0/cve-2026-poc-collection/tree/main/other/v8-poc-CVE-2026-5865

This repository contains a functional exploit for CVE-2026-5865, targeting a V8 JavaScript engine vulnerability. The exploit leverages type confusion and memory corruption to achieve arbitrary read/write primitives, ultimately leading to remote code execution via WebAssembly manipulation.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: V8 JavaScript Engine (specific version not specified)
No auth needed
Prerequisites: V8 engine with Maglev optimization enabled · Access to execute JavaScript in the target environment
devstral-2 · analyzed May 21, 2026 Full analysis →

Scores

CVSS v3 8.8
EPSS 0.0041
EPSS Percentile 32.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-843
Status published
Products (2)
google/chrome < 147.0.7727.55
Google/Chrome 147.0.7727.55
Published Apr 08, 2026
Tracked Since Apr 09, 2026