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CVE-2026-113327 Google CVE debrief

CVE-2026-113327 debrief based on CVE Program and NVD records. Google Chrome users should assess exposure to this use-after-free vulnerability. The vulnerability exists in the Chromecast feature of Google Chrome prior to version 156.0.8078.47, allowing remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. Users should verify that Google Chrome is updated to version 156.0.8078.47 or later. This debrief provides an executive overview of the affected product, vulnerability class, and likely operational impact.

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

Google Chrome users, particularly those with Chromecast functionality enabled, should assess their exposure to this vulnerability and prioritize remediation. This includes operators, security teams, and vulnerability management teams who need to verify that Google Chrome is updated to version 156.0.8078.47 or later. Affected deployments require verification and potential remediation to prevent remote code execution inside the sandbox.

Why it matters

CVE-2026-113327 is a use-after-free vulnerability in Google Chrome's Chromecast feature that could allow remote code execution inside the sandbox. Defenders should assess exposure, prioritize remediation, and verify that Google Chrome is updated to version 156.0.8078.47 or later.

  • Remote attackers may be able to execute arbitrary code inside the sandbox.
  • Successful exploitation requires user interaction via a crafted HTML page.
  • Defenders should verify that Google Chrome is updated to version 156.0.8078.47 or later.
  • Exposure and potential impact require verification from official sources.

Technical summary

A use-after-free vulnerability exists in the Chromecast feature of Google Chrome prior to version 156.0.8078.47. This vulnerability could allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability requires user interaction and defenders should verify that Google Chrome is updated to version 156.0.8078.47 or later. The technical impact is that remote attackers may be able to execute arbitrary code inside the sandbox, and defenders should assess exposure and prioritize remediation.

Defensive priority

Medium

Recommended defensive actions

  • Review and apply the available patch for Google Chrome version 156.0.8078.47 or later.
  • Assess exposure and prioritize remediation for affected Google Chrome deployments.
  • Verify that Google Chrome is updated to the latest version.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record and NVD entry provide details on the use-after-free vulnerability in Google Chrome prior to version 156.0.8078.47. The vulnerability allows remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. Defenders should verify that Google Chrome is updated to version 156.0.8078.47 or later and assess exposure to this vulnerability. The source grounding indicates that this information comes from official CVE Program and NVD records.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113327 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113327

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-113327 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113327

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

Supplemental references

  • CVE-2026-113327

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113327.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/513417142

    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.