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PatchSiren cyber security CVE debrief

CVE-2026-113047 Google CVE debrief

PatchSiren debrief for CVE-2026-113047: Memory corruption in BrowserTag in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. This vulnerability affects Google Chrome deployments, specifically those using BrowserTag, and defenders should assess exposure and prioritize updates to prevent potential memory reads via crafted HTML pages. The CVE record and source item provide details on the memory corruption vulnerability in BrowserTag in Google Chrome.

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 Google Chrome deployments should assess exposure and prioritize updates to prevent potential memory reads via crafted HTML pages. This includes operators, platform administrators, vulnerability management teams, and security teams. They should verify Chrome versions and update to 156.0.8078.47 or later, review sandbox configurations, and monitor for crafted HTML pages.

Why it matters

Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later to prevent potential memory reads via crafted HTML pages.

  • Verify Chrome versions to prevent potential memory reads
  • Update to 156.0.8078.47 or later to patch vulnerability
  • Monitor for crafted HTML pages to detect potential attacks

Technical summary

Memory corruption in BrowserTag in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. The vulnerability affects Google Chrome deployments using BrowserTag, and defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later to prevent potential memory reads via crafted HTML pages. This vulnerability has a low severity and is related to Chromium security updates. Defenders should review sandbox configurations and monitor for crafted HTML pages.

Defensive priority

Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later.

Recommended defensive actions

  • Verify Chrome versions and update to 156.0.8078.47 or later
  • Monitor for crafted HTML pages
  • Review sandbox configurations
  • 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
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance

Evidence notes

The CVE record and source item provide details on the memory corruption vulnerability in BrowserTag in Google Chrome. Defenders should verify Chrome versions and update to 156.0.8078.47 or later to prevent potential memory reads via crafted HTML pages. The vulnerability allows a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. Evidence is limited to the CVE record and source item, and defenders should review sandbox configurations and monitor for crafted HTML pages.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113047 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113047

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

  • CVE-2026-113047 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113047

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

Supplemental references

  • CVE-2026-113047

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113047.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/553267541

    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.