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PatchSiren cyber security CVE debrief

CVE-2026-113310 Google CVE debrief

A high-severity out-of-bounds read vulnerability was discovered in Google Chrome's Bluetooth component. This issue, tracked as CVE-2026-113310, allows a remote attacker to read memory inside the sandbox via a crafted HTML page. The vulnerability was addressed in Chrome version 156.0.8078.47. The vulnerability affects Google Chrome's Bluetooth component, which is a critical part of the browser's functionality. This issue is particularly concerning because it can be exploited through a crafted HTML page, which could be delivered through various means, including email or web browsing.

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, especially in environments where users frequently access HTML pages from untrusted sources, should prioritize patching this vulnerability. This includes IT teams managing browser updates, security teams monitoring for potential threats, and operators of critical infrastructure that rely on Chrome for daily operations. Additionally, security teams should review compensating controls for exposed

Why it matters

CVE-2026-113310 is a high-severity vulnerability in Google Chrome's Bluetooth component that allows remote attackers to read memory inside the sandbox. Defenders should prioritize patching, especially for users accessing untrusted HTML pages.

  • Read memory inside the sandbox
  • Potential data exposure through crafted HTML pages
  • Requires patching Chrome to version 156.0.8078.47 or later

Technical summary

The vulnerability is caused by an out-of-bounds read in the Bluetooth component of Google Chrome. This allows a remote attacker to read memory inside the sandbox via a crafted HTML page. The issue was addressed in Chrome version 156.0.8078.47. The vulnerability affects Google Chrome's Bluetooth component, which is a critical part of the browser's functionality. This issue is particularly concerning because it can be exploited through a crafted HTML page, which could be delivered through various means, including email or web browsing. The vulnerability has a high severity and defenders should prioritize patching.

Defensive priority

Defenders should prioritize patching this vulnerability, especially for users who frequently access HTML pages from untrusted sources.

Recommended defensive actions

  • Patch Chrome to version 156.0.8078.47 or later
  • Restrict access to untrusted HTML pages
  • Monitor for suspicious activity
  • 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 about the vulnerability, including its high severity and the affected Chrome version. However, the CVSS score and vector are not provided. The vulnerability was discovered in Google Chrome's Bluetooth component, and defenders should verify the patch status of Chrome deployments, especially in environments where users frequently access HTML pages from untrusted sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113310 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113310

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

  • CVE-2026-113310 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113310

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

Supplemental references

  • CVE-2026-113310

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113310.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/566687517

    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.