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PatchSiren cyber security CVE debrief

CVE-2026-11257 Google CVE debrief

A vulnerability was discovered in Google Chrome prior to version 149.0.7827.53. The issue is related to an inappropriate implementation in the Browser component, which could allow a remote attacker to bypass navigation restrictions via a crafted HTML page. The Chromium security severity of this issue is rated as Low.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-07-23
Advisory published
2026-06-05
Advisory updated
2026-07-23

Who should care

Users of Google Chrome, particularly those who use the browser for sensitive activities or expose it to untrusted web pages.

Technical summary

The vulnerability is caused by an inappropriate implementation in the Browser component of Google Chrome. This could allow a remote attacker to bypass navigation restrictions via a crafted HTML page. The CVSS score for this vulnerability is 4.3, indicating a Medium severity.

Defensive priority

Medium

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Be cautious when visiting untrusted web pages or clicking on links from unknown sources.

Evidence notes

The CVE record and NVD detail can be found at [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11257) and [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11257), respectively.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11257 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11257

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

  • CVE-2026-11257 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11257

    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.