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CVE-2026-9911 Google CVE debrief

Integer overflow in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-28
Original CVE updated
2026-07-21
Advisory published
2026-05-28
Advisory updated
2026-07-21

Who should care

Organizations and individuals using Google Chrome versions prior to 148.0.7778.216; security teams responsible for browser security posture; developers of web applications that may interact with WebGL or canvas rendering contexts.

Technical summary

CVE-2026-9911 is an integer overflow vulnerability in ANGLE (Almost Native Graphics Layer Engine), the graphics translation layer used by Google Chrome. The flaw exists in Chrome versions prior to 148.0.7778.216. A remote attacker can exploit this vulnerability by convincing a user to visit a crafted HTML page, triggering an out-of-bounds memory read. The vulnerability is rated High severity by Chromium security standards. ANGLE translates OpenGL ES API calls to native graphics APIs (Direct3D, Metal, Vulkan), making this a graphics pipeline vulnerability that could potentially expose memory contents to attacker-controlled web content.

Defensive priority

high

Recommended defensive actions

  • Update Google Chrome to version 148.0.7778.216 or later.
  • Review and restrict execution of untrusted HTML content in browser environments.
  • Monitor for unexpected browser crashes or memory-related anomalies that may indicate exploitation attempts.
  • Apply principle of least privilege for browser processes where feasible.

Evidence notes

CVE published 2026-05-28; modified 2026-05-29. Vendor identified as Google (Chrome) via Chrome Releases blog reference. Affects Chrome versions prior to 148.0.7778.216. CWE-472 (External Control of Assumed-Immutable Web Parameter) listed in source metadata, though integer overflow typically maps to CWE-190; using source-provided classification. No KEV listing. No known ransomware campaign use documented.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9911 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9911

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

  • CVE-2026-9911 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9911

    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.