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PatchSiren cyber security CVE debrief

CVE-2026-79267 Google CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-25T21:18:21.323Z and has not been modified since then. The NVD entry is currently Analyzed. This Medium severity vulnerability in Google Chrome prior to version 152.0.7977.65 is a race condition in Workers that allows a remote attacker to bypass web origin policy via a crafted HTML page. Organizations and individuals using Google Chrome prior to version 152.0.7977.65 should apply the latest update to prevent potential web origin policy bypass attacks. The vulnerability was reported by the Chromium security team and assigned a Medium severity rating. It is essential to review and update the inventory of Google Chrome installations to ensure all instances are patched and to monitor Google Chrome release notes and security advisories for future updates and vulnerabilities.

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 and individuals using Google Chrome prior to version 152.0.7977.65 should apply the latest update to prevent potential web origin policy bypass attacks.

Technical summary

CVE-2026-79267 is a Medium severity vulnerability in Google Chrome prior to version 152.0.7977.65. The vulnerability is a race condition in Workers that allows a remote attacker to bypass web origin policy via a crafted HTML page. This vulnerability was reported by the Chromium security team and assigned a Medium severity rating.

Defensive priority

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

Recommended defensive actions

  • Apply the latest Google Chrome update (version 152.0.7977.65 or later) to patch the vulnerability.
  • Review and update inventory of Google Chrome installations to ensure all instances are patched.
  • Monitor Google Chrome release notes and security advisories for future updates and vulnerabilities.

Evidence notes

The CVE-2026-79267 record indicates a Medium severity vulnerability in Google Chrome prior to version 152.0.7977.65. The vulnerability is a race condition in Workers that allows a remote attacker to bypass web origin policy via a crafted HTML page. Official records from the CVE Program and NVD provide details on the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-79267 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-79267

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

  • CVE-2026-79267 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-79267

    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.