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Google Chrome CVE-2026-113282

| EUVDEUVD-2026-105630 HIGH
Use After Free (CWE-416)
2026-10-20 chrome-cve-admin@google.com GHSA-xcfr-cxqm-gxp8
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
    Page triggers use-after-free in Views
  3. Execution
    Reclaim freed object with controlled data
  4. Impact
    Execute arbitrary code within renderer sandbox

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
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 a macOS user running Google Chrome prior to 156.0.8078.47 to load attacker-controlled HTML content in the browser (UI:R user interaction). No authentication or privileges are needed (PR:N), and default configurations are affected. The key LIMITING factors are: (1) resulting code execution is confined to the renderer sandbox (S:U), so a separate sandbox-escape vulnerability is needed for host compromise; (2) the flaw is platform-specific to macOS builds and does not apply to Windows/Linux Chrome; and (3) the user must actively navigate to the malicious page.

Impact

This is a CVSS 3.1 score of 8.8 (High) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a remote, low-complexity, unauthenticated vulnerability requiring only that a user open a crafted HTML page. However, several signals temper the raw CVSS: Google/Chromium rated the underlying issue 'Medium' severity, and the description explicitly states code execution is 'inside the sandbox' - meaning the scope is Unchanged (S:U) and this is NOT a full sandbox escape or host compromise on its own. It would realistically need to be chained with a separate sandbox-escape bug to achieve meaningful system-level impact. No EPSS score, KEV listing, or POC availability was provided in the input; there is no public exploit identified at time of analysis and no evidence of active exploitation. The 'Denial Of Service' tag is plausible given use-after-free (CWE-416) can crash the renderer, but the primary concern is renderer-constrained code execution. Net: a legitimate patch-worthy memory-corruption bug in a ubiquitous product, but its real-world priority is lower than the 8.8 suggests because exploitation is sandbox-confined, requires user interaction, and affects only macOS Chrome builds prior to 156.0.8078.47.

Exploit ScenarioDerived

An attacker hosts or compromises a web page containing crafted content that triggers the use-after-free in Chrome's Views component when rendered. A macOS victim running a vulnerable Chrome version visits the page (UI:R), and the attacker achieves code execution confined to the renderer sandbox. No public exploit code was identified in the provided data.

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

Arbitrary code execution inside the Chrome renderer sandbox on macOS is possible with Google Chrome versions prior to 156.0.8078.47 when a user opens a crafted HTML page. The flaw is a use-after-free in Views rated CVSS 3.1 8.8 (High; AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), requiring user interaction but no authentication; code execution is confined to the renderer unless chained with a separate sandbox escape. No public exploit code or confirmed active exploitation was identified at time of analysis, and a vendor patch is available.

RemediationAI

Upgrade Google Chrome on macOS to version 156.0.8078.47 or later; the vendor has released a patch, and Chrome's auto-update mechanism or a manual download from Google can apply it, with version verification through chrome://version. Enterprise administrators should enforce the fixed version through browser update policies, accepting that forced relaunches or update enforcement may interrupt active sessions. If immediate upgrade is not possible, restrict use of the unpatched macOS Chrome build for untrusted HTML content and consider isolating risky browsing to a separately managed browser profile or virtualized environment, recognizing that domain-blocking is reactive and does not address the underlying memory corruption. Advisory references: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html and https://issues.chromium.org/issues/553160293.

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

CVE-2026-113282 is a CWE-416 use-after-free in Chromium's Views UI framework, which underlies Google Chrome's browser UI and related rendering paths. The defect involves memory lifecycle mismanagement in which an object can be freed and later dereferenced while processing attacker-controlled HTML, allowing memory corruption that may be leveraged for arbitrary code execution inside the renderer sandbox. The issue is specific to macOS Chrome builds prior to 156.0.8078.47 and is remotely reachable through web content with user interaction (UI:R) but no privileges (PR:N); the CVSS vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H reflects high confidentiality, integrity, and availability impact within the renderer scope, not host-level compromise without a sandbox escape. No CPE strings were supplied in the available data.

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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 delivery (AV:N), no privileges (PR:N) but requires user to open the page (UI:R); scope stays Unchanged because code runs within the sandbox, with high renderer-level C/I/A.

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:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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

Use after free in Views in Google Chrome on on Mac prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Executive ViewAI

Why It Matters

Google Chrome on macOS prior to version 156.0.8078.47 contains a use-after-free memory flaw in the Views component that lets a crafted web page run arbitrary code inside the browser's renderer sandbox. Any Mac user who browses to attacker-controlled content with an unpatched browser is exposed, making routine web activity the delivery path and turning the installed browser fleet into a broad, low-friction attack surface across the organization. Because the code execution is contained by the renderer sandbox unless combined with a separate sandbox-escape flaw, the near-term risk to endpoints is elevated but not yet a full system compromise; leadership should treat this as a priority patch-cycle item rather than an emergency, given no public exploit code exists.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.4%
Top 68% 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

Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

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

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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