PatchSiren cyber security CVE debrief

CVE-2026-113013 Google CVE debrief

A memory corruption vulnerability in Google Chrome's DevTools, prior to version 156.0.8078.47, allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. This issue, tracked as CVE-2026-113013, was publicly disclosed on October 20, 2026. The vulnerability exists due to improper handling of certain HTML pages, leading to potential code execution. Defenders should assess their exposure and apply patches as necessary. The CVE record and source item provide details on the vulnerability, including its existence in Google Chrome prior to version 156.0.8078.47 and the potential for arbitrary code execution within the sandbox.

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 installations, particularly in environments where exposure to untrusted HTML pages is possible, should assess their exposure to CVE-2026-113013 and apply patches as necessary.

Why it matters

CVE-2026-113013 is a memory corruption vulnerability in Google Chrome's DevTools that allows remote attackers to execute arbitrary code within the sandbox. Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47.

Remote code execution within the sandbox
Potential for attacker-controlled code execution
Requires verification of affected versions and exposure
Patching priority for Google Chrome versions prior to 156.0.8078.47

Technical summary

The CVE-2026-113013 vulnerability is a memory corruption issue in Google Chrome's DevTools. It allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. The vulnerability was publicly disclosed on October 20, 2026, and patched in Google Chrome version 156.0.8078.47. The issue arises from improper handling of certain HTML pages, which can lead to potential code execution. Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47.

Defensive priority

Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47, as the vulnerability allows for arbitrary code execution within the sandbox.

Recommended defensive actions

Assess exposure of Google Chrome installations to CVE-2026-113013
Apply patches for Google Chrome to version 156.0.8078.47 or later
Monitor Google Chrome for updates and apply patches as they become available
Review compensating controls for exposed systems while remediation is scheduled and verified
Check relevant monitoring, detection, and logs for exposed assets that need extra review
Track exceptions, retest remediated assets, and close the item only after evidence is documented
Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, including its existence in Google Chrome prior to version 156.0.8078.47 and the potential for arbitrary code execution within the sandbox.

Sources and references

Verified primary and authoritative sources

CVE-2026-113013 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113013

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113013 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113013

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

Supplemental references

CVE-2026-113013
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113013.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/563814519

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.