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Google CVE-2026-91734

| EUVDEUVD-2026-79959 HIGH
Incorrect Authorization (CWE-863)
2026-09-15 chrome-cve-admin@google.com GHSA-p2gj-6m34-2678
7.4
CVSS 3.1 · Vendor: google
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Severity by source

Vendor (google) PRIMARY
7.4 HIGH
AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (google) · only source for this CVE.

CVSS VectorVendor: google

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Sep 16, 2026 - 00:23 vuln.today
CVSS changed
Sep 16, 2026 - 00:22 NVD
7.4 (HIGH)
CVE Published
Sep 15, 2026 - 21:16 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 15, 2026 - 21:16 cve.org
HIGH 7.4

DescriptionCVE.org

Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)

AnalysisAI

Incorrect authorization in Chrome's Core component on Windows (versions prior to 153.0.8010.47) lets a local attacker who can run a program on the machine break out of the browser sandbox and execute arbitrary code at the user's privilege level outside it. The flaw is rated High by the Chromium security team and carries CVSS 7.4 (AV:L/AC:H/PR:N/UI:N, C/I/A all High), reflecting a local-only but complete confidentiality, integrity and availability impact once the sandbox boundary is crossed. …

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CVE-2026-91734 vulnerability details – vuln.today

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