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Google Chrome EUVDEUVD-2026-66052

| CVE-2026-78896 MEDIUM
Information Exposure (CWE-200)
2026-08-25 Chrome GHSA-q9qv-6qx8-79cg
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:L/I:N/A:N
vuln.today AI
4.3 MEDIUM

Network-delivered via crafted page (AV:N), user must visit page (UI:R), no attacker auth needed (PR:N), partial confidentiality only with no integrity or availability impact.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

4
Analysis Generated
Aug 26, 2026 - 22:36 vuln.today
CVSS changed
Aug 26, 2026 - 20:23 NVD
4.3 (MEDIUM)
CVE Published
Aug 25, 2026 - 20:10 cve.org
UNKNOWN (no severity yet)
CVE Published
Aug 25, 2026 - 20:10 cve.org
MEDIUM 4.3

DescriptionCVE.org

Information leak in StorageAccessAPI in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Low)

AnalysisAI

Cross-origin data exposure in Google Chrome's StorageAccessAPI implementation allows a remote attacker to read data across origin boundaries by directing a victim to a specially crafted HTML page. All Chrome desktop releases prior to 152.0.7977.65 are affected across all platforms. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Lure victim to crafted HTML page
Delivery
Trigger malicious StorageAccessAPI call
Exploit
Bypass cross-origin isolation in renderer
Execution
Read cross-origin data from victim browser session
Impact
Exfiltrate data to attacker server

Vulnerability AssessmentAI

Exploitation Exploitation has one hard prerequisite: the victim must actively visit an attacker-controlled crafted HTML page in an unpatched Chrome browser (prior to 152.0.7977.65). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.3 score with vector AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N reflects a network-reachable vulnerability with no authentication requirement but mandatory user interaction, limited to partial confidentiality impact with no integrity or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker hosts a crafted HTML page that abuses Chrome's StorageAccessAPI to read cross-origin data from a victim's active browser session. The victim is lured to the page via a phishing link or malicious advertisement; once the page loads, it silently reads restricted cross-origin storage data. …
Remediation Update Google Chrome to version 152.0.7977.65 or later using Chrome's built-in update mechanism (Settings → Help → About Google Chrome) or via enterprise deployment tools; the stable-channel advisory is at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-66052 vulnerability details – vuln.today

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