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PatchSiren cyber security CVE debrief

CVE-2026-11277 Google CVE debrief

CVE-2026-11277 is a vulnerability in Google Chrome on iOS prior to 149.0.7827.53. The vulnerability is caused by insufficient policy enforcement, which allowed a remote attacker to bypass discretionary access control via a crafted HTML page. The Chromium security severity is rated as Low, and the CVSS score is 4.3, with a severity rating of MEDIUM.

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 on iOS prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by insufficient policy enforcement in Chrome for iOS. This allows a remote attacker to bypass discretionary access control via a crafted HTML page.

Defensive priority

The CVSS score of 4.3 and a severity rating of MEDIUM indicate that this vulnerability is not critical but still requires attention.

Recommended defensive actions

  • Update Google Chrome on iOS to version 149.0.7827.53 or later.

Evidence notes

The CVE record and NVD detail can be found at [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11277) and [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11277).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11277 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11277

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

  • CVE-2026-11277 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11277

    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.