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Google CVE-2026-87469

| EUVDEUVD-2026-74468 MEDIUM
Improper Input Validation (CWE-20)
2026-09-09 Chrome GHSA-xp9j-gfm4-j68v
4.3
CVSS 3.1 · Vendor: Chrome
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Severity by source

Vendor (Chrome) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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

CVSS VectorVendor: Chrome

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

5
Analysis Generated
Sep 15, 2026 - 10:55 vuln.today
CVSS changed
Sep 14, 2026 - 13:22 NVD
4.3 (MEDIUM)
Patch available
Sep 09, 2026 - 01:03 EUVD
CVE Published
Sep 09, 2026 - 00:10 cve.org
MEDIUM 4.3
CVE Published
Sep 09, 2026 - 00:10 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Improper input validation in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy into a privileged page via crafted network traffic. (Chromium security severity: Low)

AnalysisAI

Improper input validation in Google Chrome's Extensions component before version 153.0.8010.36 lets a remote attacker bypass web origin policy and reach content in a privileged page using crafted network traffic, but the attack requires the victim to interact with the malicious content (CVSS UI:R). Google's own Chromium security severity is rated Low and the NVD vector scores only 4.3 with integrity-only impact (C:N/I:L/A:N) and no confidentiality or availability loss. …

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CVE-2026-87469 vulnerability details – vuln.today

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