CVE-2026-121217

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Use After Free in Google Chrome Streaming

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description

Use after free in Streaming in Google Chrome prior to 157.0.8103.38 allowed an adjacent attacker to execute arbitrary code inside the sandbox via crafted network traffic. (Chromium security severity: Low)

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Meta Information

Published

2026-11-03

Last Modified

2026-11-03

Generated

2026-11-04

AI Q&A

2026-11-04

EPSS Evaluated

N/A

NVD

CVE-2026-121217

EUVD

EUVD-2026-116318

Affected Vendors & Products

Vendor	Product	Version / Range
Google	Chrome	157.0.8103.38

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This is a use-after-free vulnerability in Google Chrome's Streaming component. It occurs when a program tries to use memory that has already been freed, potentially allowing an attacker to execute arbitrary code within the browser's sandbox. The issue is triggered by specially crafted network traffic.

Impact Analysis

An attacker could exploit this to run malicious code on your device through normal browsing. Since it's in the sandbox, the impact is limited but could still allow code execution within Chrome's restricted environment.

Mitigation Strategies

Update Google Chrome to version 157.0.8103.38 or later to address the use-after-free vulnerability in Streaming.

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