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PatchSiren cyber security CVE debrief

CVE-2026-113294 Google CVE debrief

CVE-2026-113294 is an improper input validation vulnerability in Google Chrome's Loader component 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 team has assessed this vulnerability as having a Low severity. Defenders should verify exposure, prioritize patching, and educate users about potential risks. The vulnerability exists in the Loader component of Google Chrome prior to version 156.0.8078.47. It allows a remote attacker to potentially execute arbitrary code within the sandbox by providing a crafted HTML page.

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 users access external web pages, should assess exposure and apply necessary patches. This includes IT and security teams in organizations using Google Chrome for browsing.

Why it matters

CVE-2026-113294 is a Low-severity vulnerability in Google Chrome's Loader component that could allow remote code execution within the sandbox. Defenders should verify exposure, prioritize patching, and educate users about potential risks.

  • Defenders need to verify if their Google Chrome versions are prior to 156.0.8078.47.
  • Potential for remote attackers to execute arbitrary code within the Chrome sandbox requires immediate attention.
  • Patching Chrome to the latest version is crucial to mitigate this vulnerability.
  • User awareness about the risks of visiting crafted HTML pages may be necessary.

Technical summary

The vulnerability exists in the Loader component of Google Chrome prior to version 156.0.8078.47. It allows a remote attacker to potentially execute arbitrary code within the sandbox by providing a crafted HTML page. The Chromium security severity for this issue is Low. Defenders should prioritize verifying exposure and applying patches for Google Chrome versions prior to 156.0.8078.47. This involves reviewing system inventories, updating Chrome to the latest version, and ensuring that all users are aware of the potential risks associated with this vulnerability.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Google Chrome versions prior to 156.0.8078.47. This involves reviewing system inventories, updating Chrome to the latest version, and ensuring that all users are aware of the potential risks associated with this vulnerability.

Recommended defensive actions

  • Verify and apply Google Chrome updates to ensure version 156.0.8078.47 or later is deployed.
  • Review system inventories to identify potential exposure.
  • Monitor user awareness and educate on potential risks associated with crafted HTML pages.
  • 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.
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Evidence notes

The CVE Program record and NVD vulnerability detail provide official information about this vulnerability. Supplemental sources include Google's Chrome release blog and Chromium issue tracker. The CVE record was published on 2026-10-20T21:02:52.181Z and has not been modified since then. The Chromium security severity for this issue is Low. Defenders need to verify if their Google Chrome versions are prior to 156.0.8078.47. Potential for remote attackers to execute arbitrary code within the Chrome sandbox requires immediate attention.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113294 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113294

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

  • CVE-2026-113294 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113294

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

Supplemental references

  • CVE-2026-113294

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113294.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/563015337

    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.