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CVE-2026-113062 Google CVE debrief

CVE-2026-113062 Improper input validation in Google Chrome API prior to version 156.0.8078.47 allows remote attackers to potentially execute arbitrary code inside the sandbox via crafted HTML pages. Defenders should review and apply patches, monitor for suspicious activity, and ensure all users are updated to the latest version. This medium-severity vulnerability requires verification of affected versions and patch application, as well as monitoring for suspicious activity related to crafted HTML pages.

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 should assess exposure and apply patches accordingly. This includes reviewing and applying patches, monitoring for suspicious activity, and ensuring all users are updated to the latest version of Google Chrome. Additionally, defenders should verify affected scope, severity, and vendor guidance, and review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-113062 is a medium-severity vulnerability in Google Chrome that requires defenders to review and apply patches, monitor for suspicious activity, and ensure all users are updated to the latest version.

  • Potential execution of arbitrary code inside the sandbox.
  • Requires verification of affected versions and patch application.
  • Monitoring for suspicious activity related to crafted HTML pages.

Technical summary

The vulnerability is caused by improper input validation in the API of Google Chrome prior to version 156.0.8078.47. This could allow a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability has a medium severity and requires defenders to review and apply patches, monitor for suspicious activity, and ensure all users are updated to the latest version of Google Chrome. The CVE record and source item provide details on the vulnerability, and defenders should verify affected scope, severity, and vendor guidance.

Defensive priority

Medium

Recommended defensive actions

  • Review and apply the available patch for Google Chrome version 156.0.8078.47 or later.
  • Ensure all users are updated to the latest version of Google Chrome.
  • Monitor for any suspicious activity related to this vulnerability.
  • 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 improper input validation vulnerability in Google Chrome prior to 156.0.8078.47. The vulnerability allows remote attackers to potentially execute arbitrary code inside the sandbox via crafted HTML pages. Defenders should verify affected scope, severity, and vendor guidance. The source item for CVE-2026-113062 and official CVE Program record with source-provided CVE metadata are referenced.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113062 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113062

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

  • CVE-2026-113062 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113062

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

Supplemental references

  • CVE-2026-113062

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113062.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/562237871

    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.