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Google Chrome CVE-2026-113106

| EUVDEUVD-2026-105610 HIGH
Buffer Overflow (CWE-119)
2026-10-20 chrome-cve-admin@google.com GHSA-45fv-vxmh-xw27
8.8
CVSS 3.1 · Vendor: google
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Lure victim to crafted HTML page
  2. Exploit
    Deliver malicious Skia graphics content
  3. Execution
    Trigger memory corruption in renderer
  4. Impact
    Execute arbitrary code inside sandbox

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires the victim to load attacker-controlled HTML/graphics content in a vulnerable Chrome desktop build prior to 156.0.8078.47 (UI:R - user must browse to the malicious page). No authentication or special privileges are needed (PR:N), and default configurations are affected since Skia rendering is core browser functionality. The primary LIMITING factor is that resulting code execution is confined to the sandboxed renderer process - full system compromise requires chaining a separate sandbox-escape vulnerability - and exploitation is gated on the user visiting malicious content rather than being fully automatable.

Impact

CVSS 3.1 base score is 8.8 (High) with vector AV:N/AC:L/PR:N/UI:R, indicating a network-reachable, low-complexity flaw needing no privileges but requiring user interaction (loading a crafted HTML page). However, Chromium's own security severity rating is only Medium, and critically the description states code execution occurs 'inside the sandbox' - meaning a successful exploit is confined to the renderer process and would need to be chained with a separate sandbox-escape bug to achieve full host compromise. This gap (CVSS 8.8 vs. vendor Medium) reflects that CVSS does not model Chrome's sandbox mitigation. No EPSS score, CISA KEV listing, or public POC is present in the provided data, so there is no evidence of active exploitation or available exploit code. Net assessment: patch promptly as part of normal Chrome update cadence, but this is not a drop-everything emergency - the sandbox containment and absence of exploitation signals place it below unsandboxed/actively-exploited Chrome zero-days. Skia (the graphics/rendering engine) is a historically fruitful exploitation surface, which is the main reason not to defer the update.

Exploit ScenarioDerived

An attacker hosts or compromises a web page containing malicious graphics content that triggers the Skia memory-corruption bug when rendered. A victim using a vulnerable Chrome build (prior to 156.0.8078.47) visits the page, and the attacker gains arbitrary code execution within the sandboxed renderer process. No public exploit code or active exploitation is identified in the provided data, and the attacker would still need a separate sandbox escape to affect the underlying system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Memory corruption in Google Chrome's Skia graphics library prior to 156.0.8078.47 allows remote code execution inside the sandboxed renderer when a user loads a crafted HTML page. The flaw is network-reachable, requires no privileges, and affects default desktop configurations, but exploitation depends on user interaction with malicious web content and code execution is confined to the renderer sandbox unless chained with a separate sandbox escape. No public exploit code was identified at time of analysis, and a vendor patch is available in Chrome 156.0.8078.47.

RemediationAI

Upgrade Google Chrome to version 156.0.8078.47 or later; this is the vendor-released fix for CVE-2026-113106, and Chrome's automatic update mechanism should be allowed to apply it, with version verification afterward. If immediate upgrading is not possible, reduce exposure by preventing users from browsing untrusted web content in unpatched Chrome instances, using application allow-listing or browser isolation for high-risk sites; these controls can disrupt normal web workflows and do not remove the underlying flaw. Enterprise administrators can enforce version compliance through browser management policies, and users should restart Chrome after updating. Refer to the Chrome release advisory at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html and the Chromium issue at https://issues.chromium.org/issues/553126587 for patch details.

Affected VersionsENISA

Chrome 156.0.8078.47 <156.0.8078.47

Affected Packages

euvd chrome fix: 156.0.8078.47

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Skia is the 2D graphics rendering library used by Chrome to process and display web content, including canvas, SVG, and other graphical elements. CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) indicates that malformed graphics data can trigger out-of-bounds memory access, leading to memory corruption that may be leveraged for arbitrary code execution in the renderer process. Because Skia parsing occurs during normal page rendering, no special privileges are required (PR:N), and the attack is delivered over the network (AV:N) with low complexity (AC:L). The CVSS vector requires user interaction (UI:R), reflecting that the victim must visit or load attacker-controlled HTML/graphics content. The Chromium security severity is Medium, and the practical impact is bounded by Chrome's renderer sandbox; full system compromise would require an additional sandbox-escape vulnerability.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (google) PRIMARY 8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI 8.8 HIGH

Remote crafted page with no privileges (AV:N/PR:N) but requires user to visit (UI:R); scope unchanged as code stays in-sandbox (S:U) with full renderer compromise (C/I/A:H).

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Red Hat 6.5 MEDIUM

Primary rating from Vendor (google).

CVSS VectorVendor: google

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
CVSS changed
Oct 21, 2026 - 00:23 NVD
8.8 (HIGH)
Patch available
Oct 20, 2026 - 23:20 EUVD
CVE Published
Oct 20, 2026 - 22:19 cve.org
HIGH 8.8

DescriptionCVE.org

Memory corruption in Skia in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Executive ViewAI

Why It Matters

Google Chrome's Skia graphics library contains a memory-corruption flaw that can let a crafted web page execute code inside the browser's renderer, affecting default desktop configurations across the workforce. The risk is broad because Chrome is widely deployed, but exploitation requires a user to load malicious content and is confined to the renderer sandbox unless chained with a separate sandbox escape. Leadership should prioritize patching to reduce exposure, while noting that no public exploit code was identified at time of analysis.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.4%
Top 72% exploitable
Prevalence
Ubiquitous
Google Chrome is among the most widely deployed browsers worldwide
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Vendor StatusVendor

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