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CVE-2026-79116 Google CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-25T21:18:06.657Z and has not been modified since then. The CVE-2026-79116 vulnerability involves missing authorization in Viz in Google Chrome prior to version 152.0.7977.65. This allows a remote attacker who has compromised the renderer process to bypass web origin policy via a crafted HTML page. The vulnerability has a CVSS score of 4.3 and is classified as Medium severity. Organizations should review Chrome browser versions and ensure all instances are up-to-date. Consider implementing additional security measures, such as Content Security Policy (CSP), to enhance browser security.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-25
Original CVE updated
2026-08-31
Advisory published
2026-08-25
Advisory updated
2026-08-31

Who should care

Organizations using Google Chrome for browsing, especially those with high-security requirements or exposed to potential web-based attacks, should prioritize updating to the latest version of Chrome (152.0.7977.65 or later) to address this vulnerability.

Technical summary

The CVE-2026-79116 vulnerability involves missing authorization in Viz in Google Chrome prior to version 152.0.7977.65. This allows a remote attacker who has compromised the renderer process to bypass web origin policy via a crafted HTML page. The vulnerability has a CVSS score of 4.3 and is classified as Medium severity.

Defensive priority

Medium severity vulnerability in Google Chrome, requiring immediate attention to prevent potential web origin policy bypass.

Recommended defensive actions

  • Apply the latest Google Chrome update (version 152.0.7977.65 or later) to address the missing authorization vulnerability.
  • Review and enforce strict web origin policy in your organization's Chrome deployments.
  • Monitor Chrome browser versions and ensure all instances are up-to-date.
  • Consider implementing additional security measures, such as Content Security Policy (CSP), to enhance browser security.

Evidence notes

The CVE-2026-79116 record indicates a medium severity vulnerability in Google Chrome prior to version 152.0.7977.65. The vulnerability involves missing authorization in Viz, allowing a remote attacker who has compromised the renderer process to bypass web origin policy via a crafted HTML page. The CVSS score is 4.3, with AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N. Official sources include the CVE Program and NIST NVD.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-79116 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-79116

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

  • CVE-2026-79116 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-79116

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

Supplemental references

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.