PatchSiren cyber security CVE debrief

CVE-2026-113216 Google CVE debrief

CVE-2026-113216 is a use-after-free vulnerability in Google Chrome's Navigation component. An attacker could exploit this vulnerability to execute arbitrary code within the sandbox by providing a crafted HTML page. The vulnerability was reported in Google Chrome versions prior to 156.0.8078.47. This issue is particularly concerning because it could allow for code execution within the sandbox, which requires defenders to prioritize patching and inventory checks to prevent exploitation. The vulnerability's impact on defenders includes the need for immediate patching, thorough inventory checks, and monitoring for potential exploitation attempts.

Vendor: Google
Product: Chrome
CVSS: Unknown
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-10-20
Original CVE updated: 2026-10-21
Advisory published: 2026-10-20
Advisory updated: 2026-10-21

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize patching to prevent potential exploitation. This includes reviewing and updating inventory of Chrome deployments, monitoring for potential exploitation attempts, and verifying the integrity of Chrome deployments. Additionally, defenders should conduct regular security audits and implement compensating controls for exposed systems.

Why it matters

CVE-2026-113216 is a use-after-free vulnerability in Google Chrome's Navigation component that could allow code execution within the sandbox. Defenders should prioritize patching and inventory checks to prevent exploitation.

Potential code execution within the sandbox requires verification
Patching is necessary to prevent exploitation
Inventory checks are required to ensure version 156.0.8078.47 or later is installed

Technical summary

The CVE-2026-113216 vulnerability is a use-after-free issue in the Navigation component of Google Chrome. This vulnerability can be exploited by a remote attacker to execute arbitrary code within the sandbox via a crafted HTML page. The issue was addressed in Google Chrome version 156.0.8078.47. The vulnerability's technical details include its classification as a use-after-free issue, which can lead to code execution within the sandbox. Defenders should prioritize patching to prevent potential code execution within the sandbox.

Defensive priority

Defenders should prioritize patching to prevent potential code execution within the sandbox.

Recommended defensive actions

Patch Google Chrome to version 156.0.8078.47 or later
Review and update inventory of Chrome deployments to ensure version 156.0.8078.47 or later is installed
Monitor for potential exploitation attempts
Verify the integrity of Chrome deployments
Conduct regular security audits
Implement compensating controls for exposed systems
Track exceptions and retest remediated assets

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description and affected versions. However, the information provided is limited, and defenders should verify the scope of the vulnerability and the effectiveness of the patch. The CVE record was published on 2026-10-20T21:02:28.383Z and has not been modified since then. There are no known instances of this vulnerability being exploited in the wild, but defenders should still prioritize patching and monitoring. The source item provides additional context

Sources and references

Verified primary and authoritative sources

CVE-2026-113216 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113216

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113216 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113216

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

CVE-2026-113216
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113216.json

cve_program_cvelist_v5
Source reference
Unverified legacy reference

URL: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html

Supplemental source
Source reference
Unverified legacy reference

URL: https://issues.chromium.org/issues/556899544

Supplemental source

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.