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CVE-2026-113226 Google CVE debrief

PatchSiren debrief for CVE-2026-113226: Memory corruption in Google Chrome prior to 156.0.8078.47 allows remote attackers to execute arbitrary code inside the sandbox via crafted HTML pages. Defenders should assess exposure, prioritize remediation, and verify sandbox effectiveness. This vulnerability has a low security severity according to Chromium. The CVE record was published on 2026-10-20T21:02:42.241Z and has not been modified since then. Defenders must assess whether Google Chrome deployments exist in managed environments and prioritize remediation accordingly.

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 remediation. This includes verifying Chrome versions, updating to 156.0.8078.47 or later, and monitoring for suspicious HTML page activity. Additionally, defenders should review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-113226 is a memory corruption vulnerability in Google Chrome that allows remote attackers to execute arbitrary code inside the sandbox. Defenders should assess exposure, prioritize remediation, and verify sandbox effectiveness.

  • Remote attackers may execute arbitrary code inside the sandbox
  • Defenders must verify Chrome versions and update to 156.0.8078.47 or later
  • Monitoring for suspicious HTML page activity is necessary

Technical summary

Memory corruption in Google Chrome prior to 156.0.8078.47 allows remote attackers to execute arbitrary code inside the sandbox via crafted HTML pages. This vulnerability has a low security severity according to Chromium and defenders should prioritize verifying Chrome versions, updating to 156.0.8078.47 or later, and monitoring for suspicious HTML page activity. The vulnerability affects Google Chrome deployments and defenders must assess exposure and prioritize remediation accordingly. The CVE record and source item provide additional information on the vulnerability.

Defensive priority

Defenders should prioritize verifying Chrome versions, updating to 156.0.8078.47 or later, and monitoring for suspicious HTML page activity.

Recommended defensive actions

  • Verify Chrome browser versions and update to 156.0.8078.47 or later
  • Monitor for suspicious HTML page activity
  • Assess sandbox effectiveness
  • 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 memory corruption vulnerability in Google Chrome. Chromium security severity is listed as Low. The vulnerability allows remote attackers to execute arbitrary code inside the sandbox via crafted HTML pages. Defenders should verify Chrome versions and update to 156.0.8078.47 or later. The CVE Program record and NIST NVD detail page provide additional information on the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113226 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113226

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

  • CVE-2026-113226 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113226

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

Supplemental references

  • CVE-2026-113226

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113226.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/523248913

    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.