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PatchSiren cyber security CVE debrief

CVE-2026-11280 Google CVE debrief

CVE-2026-11280 is a MEDIUM severity vulnerability in Google Chrome on iOS prior to 149.0.7827.53. This vulnerability, described as an inappropriate implementation in Signin, allows a remote attacker to perform UI spoofing via a crafted HTML page. The CVSS score for this vulnerability is 4.3.

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, particularly those who may be exposed to crafted HTML pages from remote attackers.

Technical summary

The vulnerability is caused by an inappropriate implementation in the Signin feature of Google Chrome on iOS. This allows a remote attacker to create a crafted HTML page that can spoof the user interface, potentially leading to confusion or further exploitation.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update Google Chrome on iOS to version 149.0.7827.53 or later.
  • Be cautious when accessing HTML pages from untrusted sources.

Evidence notes

The CVE record and details were obtained from official sources, including the CVE.org and NVD.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11280 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11280

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

  • CVE-2026-11280 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11280

    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.