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CVE-2026-112997 Google CVE debrief

A memory corruption vulnerability in CSS in Google Chrome prior to 156.0.8078.47 was reported. This vulnerability could potentially allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability was reported and patched, and defenders should assess exposure and prioritize updating to version 156.0.8078.47 or later. The patch addresses the vulnerability and prevents potential code execution inside the sandbox. Google Chrome users should verify their version and update as necessary.

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 managing Google Chrome deployments should assess exposure and prioritize updating to version 156.0.8078.47 or later. This includes IT teams, security teams, and administrators who manage Google Chrome installations in their organizations. They should verify their version and update as necessary to prevent exploitation.

Why it matters

Defenders should prioritize verifying and updating Google Chrome to address the memory corruption vulnerability, which could potentially allow arbitrary code execution inside the sandbox.

  • Potential execution of arbitrary code inside the sandbox
  • Verification of Google Chrome version and updates
  • Implementation of secure coding practices for HTML page rendering
  • Monitoring Google Chrome releases for future updates and security patches

Technical summary

The memory corruption vulnerability in CSS in Google Chrome prior to 156.0.8078.47 could potentially allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability was reported and patched, and defenders should assess exposure and prioritize updating to version 156.0.8078.47 or later. The patch addresses the vulnerability and prevents potential code execution inside the sandbox. Google Chrome users should verify their version and update as necessary to prevent exploitation.

Defensive priority

Defenders should prioritize verifying and updating Google Chrome to version 156.0.8078.47 or later to address this vulnerability.

Recommended defensive actions

  • Verify and update Google Chrome to version 156.0.8078.47 or later
  • Review and implement secure coding practices for HTML page rendering
  • Monitor Google Chrome releases for future updates and security patches
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • 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

Evidence notes

The CVE record and source item provide details on the memory corruption vulnerability in Google Chrome. However, the CVSS score and severity are not provided. The vulnerability was reported and patched, and defenders should assess exposure and prioritize updating to version 156.0.8078.47 or later. The source item provides additional context on the vulnerability, but further verification is needed to confirm affected scope and severity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-112997 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-112997

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

  • CVE-2026-112997 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-112997

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

Supplemental references

  • CVE-2026-112997

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/112xxx/CVE-2026-112997.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/560664595

    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.