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PatchSiren cyber security CVE debrief

CVE-2026-113117 Google CVE debrief

CVE-2026-113117 is an improper input validation vulnerability in ANGLE within Google Chrome on Mac prior to version 156.0.8078.47. This vulnerability could potentially allow a remote attacker to execute arbitrary code within the sandbox via a crafted HTML page. The Chromium security severity is rated as High. Defenders should prioritize verifying and updating Google Chrome installations to mitigate this vulnerability. The CVE record and source item provide details on the vulnerability, including its description, affected versions, and references to additional information.

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 and securing Google Chrome installations on Mac systems should be aware of this vulnerability and take steps to mitigate it. This includes verifying and updating Google Chrome installations to version 156.0.8078.47 or later. Additionally, defenders should review and implement additional security measures to detect and prevent exploitation attempts.

Why it matters

CVE-2026-113117 is a high-severity vulnerability in Google Chrome on Mac that could allow remote attackers to execute arbitrary code within the sandbox. Defenders should prioritize verifying and updating Google Chrome installations to mitigate this vulnerability.

  • Potential remote code execution within the sandbox
  • High Chromium security severity rating
  • Requires verification of Google Chrome version on Mac systems

Technical summary

The vulnerability is caused by improper input validation in ANGLE within Google Chrome on Mac prior to version 156.0.8078.47. This could allow a remote attacker to potentially execute arbitrary code within the sandbox via a crafted HTML page. The Chromium security severity is rated as High. Defenders should prioritize verifying and updating Google Chrome installations to mitigate this vulnerability. The vulnerability affects Google Chrome on Mac systems prior to version 156.0.8078.47. The CVE record and source item provide details on the vulnerability.

Defensive priority

Defenders should prioritize verifying and updating Google Chrome on Mac systems to version 156.0.8078.47 or later to mitigate this vulnerability.

Recommended defensive actions

  • Verify and update Google Chrome on Mac systems to version 156.0.8078.47 or later
  • Review and implement additional security measures to detect and prevent exploitation attempts
  • Monitor system logs and network traffic for suspicious activity
  • 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 vulnerability, including its description, affected versions, and references to additional information. The vulnerability has a high Chromium security severity rating. Defenders should verify and update Google Chrome installations on Mac systems to version 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-2026-113117 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113117

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

  • CVE-2026-113117 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113117

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

Supplemental references

  • CVE-2026-113117

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113117.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/563788518

    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.