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CVE-2026-113266 Google CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-10-20T21:01:51.788Z and has not been modified since then. The vulnerability is a high-severity memory corruption issue in Google Chrome on Android, potentially allowing code execution inside the sandbox. Defenders should prioritize verifying and applying the patch, monitoring for suspicious activity, and updating incident response plans. The CVE record and source item provide details on the memory corruption vulnerability in ANGLE in Google Chrome on Android.

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 on Android deployments should assess exposure and prioritize patching. This vulnerability could potentially allow attackers to execute code inside the sandbox, which could have significant consequences if exploited.

Why it matters

CVE-2026-113266 is a high-severity memory corruption vulnerability in Google Chrome on Android that could allow potential code execution inside the sandbox. Defenders should prioritize verifying and applying the patch, monitoring for suspicious activity, and updating incident response plans.

  • Potential code execution inside the sandbox requires verification and patching priority
  • Defenders must monitor for suspicious activity related to crafted HTML pages
  • Incident response plans should be reviewed and updated to address potential sandbox escapes

Technical summary

The vulnerability is a memory corruption issue in ANGLE (Almost Native Graphics Layer Engine) in Google Chrome on Android. It allows a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. The Chromium security severity is rated as High. The issue affects Google Chrome on Android prior to version 156.0.8078.47. Defenders should prioritize verifying and applying the patch, as the vulnerability allows potential code execution inside the sandbox, which could have significant consequences if exploited.

Defensive priority

Defenders should prioritize verifying and applying the patch for Google Chrome on Android, as the vulnerability allows potential code execution inside the sandbox.

Recommended defensive actions

  • Verify and apply the patch for Google Chrome on Android (version 156.0.8078.47 or later)
  • Monitor for suspicious activity related to crafted HTML pages
  • Review and update incident response plans to address potential sandbox escapes
  • 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 ANGLE in Google Chrome on Android. The vulnerability is described as allowing a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113266 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113266

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

  • CVE-2026-113266 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113266

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

Supplemental references

  • CVE-2026-113266

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113266.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/561499641

    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.