Description
Insufficient validation of untrusted input in GPU in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
Published: 2026-06-04
Score: 9.6 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The flaw resides in Google Chrome’s GPU component on Windows, where untrusted input is insufficiently validated. After compromising the renderer process, an attacker can craft a malicious HTML page that triggers the vulnerability, potentially escaping the browser sandbox. This boundary violation (CWE‑20) can elevate privileges or allow full system compromise if the escape succeeds. The CVE notes a Medium severity from Chromium, yet the CVSS score of 9.6 indicates a high potential impact.

Affected Systems

Chrome users on Windows running a version older than 149.0.7827.53 are affected because the fix was backported in that update. Any installation that allows the renderer to load untrusted web content is at risk. All Windows desktop versions with Chrome remain in scope until the upgrade is applied.

Risk and Exploitability

With a CVSS score of 9.6 and an EPSS score below 1%, the vulnerability is high severity but its exploitation likelihood is low, as it requires prior renderer compromise. It is not listed in the CISA KEV catalog, indicating no known active exploitation. The attack vector is inferred from the description: a remote malicious HTML page that feeds untrusted data into the GPU path after the renderer has been compromised.

Generated by OpenCVE AI on June 8, 2026 at 16:40 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to 149.0.7827.53 or later to apply the vendor fix.
  • If an update cannot be applied immediately, launch Chrome with the "--disable-gpu" flag or disable Hardware Acceleration in settings to bypass the GPU rendering path that contains the flaw.
  • Restrict renderer processes by enabling Chrome’s "Renderer process sandbox" settings and ensuring only trusted sites can trigger GPU rendering, thereby reducing the attack surface.

Generated by OpenCVE AI on June 8, 2026 at 16:40 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6325-1 chromium security update
History

Mon, 08 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows

Mon, 08 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.0, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}


Sun, 07 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title GPU Sandbox Escape via Untrusted Input in Chrome chromium-browser: Insufficient validation of untrusted input in GPU
Weaknesses CWE-179
References
Metrics threat_severity

None

cvssV3_1

{'score': 9.0, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}

threat_severity

Moderate


Fri, 05 Jun 2026 07:30:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Fri, 05 Jun 2026 03:15:00 +0000

Type Values Removed Values Added
Title GPU Sandbox Escape via Untrusted Input in Chrome

Thu, 04 Jun 2026 23:15:00 +0000

Type Values Removed Values Added
Description Insufficient validation of untrusted input in GPU in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-20
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-08T15:05:20.276Z

Reserved: 2026-06-04T17:06:31.146Z

Link: CVE-2026-11021

cve-icon Vulnrichment

Updated: 2026-06-08T15:04:03.638Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-04T23:17:06.050

Modified: 2026-06-08T18:16:23.970

Link: CVE-2026-11021

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-02T00:00:00Z

Links: CVE-2026-11021 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-08T16:45:26Z

Weaknesses
  • CWE-179

    Incorrect Behavior Order: Early Validation

  • CWE-20

    Improper Input Validation