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PatchSiren cyber security CVE debrief

CVE-2026-113172 Google CVE debrief

A memory corruption vulnerability in ServiceWorker in Google Chrome prior to 156.0.8078.47 allows a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability has a Medium security severity according to Chromium and affects Google Chrome deployments. Defenders should assess exposure and prioritize patching to prevent potential code execution inside the sandbox. The vulnerability exists in the ServiceWorker component of Google Chrome prior to version 156.0.8078.47.

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

Who should care

Defenders responsible for Google Chrome deployments should assess exposure and prioritize patching to prevent potential code execution inside the sandbox. This includes reviewing and updating incident response plans, verifying patch application, and monitoring for exploitation attempts. Security teams and vulnerability management teams should also prioritize patching and review compensating controls for exposed systems.

Why it matters

Defenders should prioritize patching Google Chrome to prevent potential remote code execution inside the sandbox. The vulnerability has a Medium security severity according to Chromium.

  • Potential remote code execution inside the sandbox
  • Requires verification of patch application
  • Monitoring for exploitation attempts is necessary

Technical summary

The vulnerability exists in the ServiceWorker component of Google Chrome prior to version 156.0.8078.47. A remote attacker can exploit this vulnerability by providing a crafted HTML page, potentially leading to arbitrary code execution inside the sandbox. This vulnerability has a Medium security severity according to Chromium and affects Google Chrome deployments. Defenders should assess exposure and prioritize patching to prevent potential code execution inside the sandbox. The vulnerability allows a remote attacker to potentially execute arbitrary code inside the sandbox.

Defensive priority

Defenders should prioritize verifying and applying the patch to prevent potential code execution inside the sandbox.

Recommended defensive actions

  • Verify and apply the patch to Google Chrome
  • Monitor for potential exploitation attempts
  • Review and update incident response plans
  • 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 source item provide details on the memory corruption vulnerability in ServiceWorker in Google Chrome. The Chromium security severity is Medium. The vulnerability allows a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. Defenders should verify patch application and monitor for exploitation attempts.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113172 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113172

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

  • CVE-2026-113172 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113172

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

Supplemental references

  • CVE-2026-113172

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113172.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/515451922

    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.