PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-11186 Google CVE debrief

A Medium severity vulnerability, CVE-2026-11186, was found in Google Chrome prior to version 149.0.7827.53. This issue is related to an inappropriate implementation in CSS, which could allow a remote attacker to inject arbitrary scripts or HTML, leading to a User Interaction Security Spoofing (UXSS) vulnerability.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-23
Advisory published
2026-06-04
Advisory updated
2026-07-23

Who should care

Users of Google Chrome prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability has a CVSS score of 6.1 and is classified as Medium severity. It exists in the CSS implementation of Google Chrome, allowing for UXSS attacks via crafted HTML pages.

Defensive priority

Medium

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Refer to [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html) for vendor advisory details.

Evidence notes

Evidence from the National Vulnerability Database (NVD) and Chromium security severity classification.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11186 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11186

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

  • CVE-2026-11186 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11186

    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.