Description
Race condition in Core in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Published: 2026-09-15
Score: 8.3 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

A race condition exists in the Core component of Google Chrome versions prior to 153.0.8010.47. It allows an attacker who already controls the renderer process to escape the sandbox and execute arbitrary code on the host. The vulnerability is classified as a race condition (CWE‑367 and CWE‑368) and scored 8.3 on CVSS, indicating a high severity if exploited.

Affected Systems

Google Chrome versions older than 153.0.8010.47 on all supported operating systems (Windows, macOS, Linux) are susceptible.

Risk and Exploitability

Exploiting the flaw requires an attacker to compromise the renderer process, usually through a malicious webpage that triggers the race condition. Once the renderer is compromised, the attacker can run code outside the sandbox. The CVSS score of 8.3 signals a high impact. The EPSS of less than 1% indicates that exploitation is presently unlikely, and the vulnerability does not appear in the CISA KEV catalog. Nonetheless, systems running vulnerable versions remain at risk if they process potentially malicious web content.

Generated by OpenCVE AI on September 22, 2026 at 13:57 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 153.0.8010.47 or newer, which contains the race condition fix.
  • Update all Chromium‑based browsers and extensions to their latest secure versions.
  • Apply sandboxing and least‑privilege controls to renderer processes to limit the privileges of the renderer, reducing the potential impact if exploitation occurs.

Generated by OpenCVE AI on September 22, 2026 at 13:57 UTC.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4790-1 chromium security update
Debian DSA Debian DSA DSA-6506-1 chromium security update
History

Tue, 22 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: chromium-browser: Race condition in Core
Weaknesses CWE-368
References
Metrics threat_severity

None

threat_severity

Important


Fri, 18 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
Title Race Condition in Chromium Core Enables Remote Code Execution

Thu, 17 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Wed, 16 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
Title Race Condition in Chromium Core Enables Remote Code Execution

Wed, 16 Sep 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

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


Tue, 15 Sep 2026 23:45:00 +0000

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

Tue, 15 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
Description Race condition in Core in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-367
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-09-17T03:56:18.763Z

Reserved: 2026-09-14T22:52:57.749Z

Link: CVE-2026-91743

cve-icon Vulnrichment

Updated: 2026-09-15T23:38:44.439Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-15T21:16:48.020

Modified: 2026-09-17T18:48:20.510

Link: CVE-2026-91743

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-15T20:41:28Z

Links: CVE-2026-91743 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T14:00:19Z

Weaknesses
  • CWE-367

    Time-of-check Time-of-use (TOCTOU) Race Condition

  • CWE-368

    Context Switching Race Condition