PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-113340 Google CVE debrief

PatchSiren debrief for CVE-2026-113340: Memory corruption in ANGLE in Google Chrome on Windows prior to 156.0.8078.47 allowed a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. This vulnerability affects Google Chrome deployments on Windows, particularly in environments where exposure to untrusted HTML content is possible. Defenders should assess and mitigate this vulnerability by verifying Chrome versions and updating to 156.0.8078.47 or later. The vulnerability could allow an attacker to read memory inside the sandbox, which could lead to information disclosure. It is essential to prioritize verifying Chrome versions and updating to the fixed

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, particularly in environments where exposure to untrusted HTML content is possible, should assess and mitigate this vulnerability.

Why it matters

CVE-2026-113340 is a memory corruption vulnerability in ANGLE in Google Chrome that could allow a remote attacker to potentially read memory inside the sandbox. Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later.

  • Verify Chrome versions to identify potentially vulnerable deployments
  • Update Chrome to version 156.0.8078.47 or later to address the vulnerability
  • Monitor for crafted HTML pages that could exploit the vulnerability
  • Implement additional security measures to protect against potential memory corruption attacks

Technical summary

The vulnerability is caused by a memory corruption issue in ANGLE in Google Chrome on Windows prior to version 156.0.8078.47. A remote attacker could potentially read memory inside the sandbox via a crafted HTML page. This issue affects Google Chrome deployments on Windows. The vulnerability allows an attacker to potentially read memory inside the sandbox, which could lead to information disclosure. Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later to address potential memory corruption vulnerabilities. The issue is related to the ANGLE component in Google Chrome, and the fix involves updating to a version that addresses the memory corruption issue.

Defensive priority

Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later to address potential memory corruption vulnerabilities.

Recommended defensive actions

  • Verify Chrome versions and update to 156.0.8078.47 or later
  • Monitor for crafted HTML pages that could exploit the vulnerability
  • Implement sandboxing and memory protection measures
  • 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 ANGLE in Google Chrome. The vulnerability allows a remote attacker to potentially read memory inside the sandbox via a crafted HTML page.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113340 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113340

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

  • CVE-2026-113340 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113340

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

Supplemental references

  • CVE-2026-113340

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113340.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/564213722

    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.