Description
Use after free in Auth in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Published: 2026-09-15
Score: 9.6 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Patch immediately
AI Analysis

Impact

The vulnerability is a use‑after‑free condition located in Chrome's authentication logic. An attacker can trigger it by delivering a crafted HTML page to a victim user. Once the bug is triggered, the attacker can execute code outside Chrome's sandbox, potentially compromising the CWE‑416.

Affected Systems

The flaw exists in Google Chrome versions older than 153. Users running any prior release are susceptible. Versions 153.0.8010.47 and later contain the fix.

Risk and Exploitability

The CVSS score of 9.6 indicates critical severity. The EPSS score is below 1%, suggesting low current exploit prevalence, and the issue is not listed in the CISA KEV catalog. Nevertheless, an attacker can exploit the bug over the internet with a crafted page, gaining execution privileges on the victim's machine.

Generated by OpenCVE AI on September 18, 2026 at 13:52 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update0.47 or later.
  • Configure Chrome to receive automatic updates to ensure timely delivery of future patches.
  • If an immediate upgrade is not possible, isolate browsing of untrusted sites in a virtual machine or sandboxed environment to contain potential exploitation.

Generated by OpenCVE AI on September 18, 2026 at 13:52 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

Thu, 17 Sep 2026 13:45:00 +0000

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

Thu, 17 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Chrome Authentication Enables Remote Code Execution chromium-browser: Google Chrome: Arbitrary code execution due to use after free vulnerability in Auth
Weaknesses CWE-825
References
Metrics threat_severity

None

 threat_severity

Important

Wed, 16 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Chrome Authentication Enables Remote Code Execution

Wed, 16 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics 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'}

ssvc

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

Tue, 15 Sep 2026 23:15:00 +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 Use after free in Auth in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-09-17T03:55:58.921Z

Reserved: 2026-09-14T22:51:22.354Z

Link: CVE-2026-91716

cve-icon Vulnrichment

Updated: 2026-09-16T10:17:57.900Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-15T21:16:44.563

Modified: 2026-09-17T13:38:17.497

Link: CVE-2026-91716

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-15T20:41:32Z

Links: CVE-2026-91716 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T14:00:10Z

Weaknesses