EUVD-2026-40842
GHSA-r7cf-wj4w-p5cq
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Network-delivered via crafted page requiring victim interaction; no attacker privileges needed; confidentiality high for cross-origin data leak; scope unchanged as the browser process does not escalate to another security authority.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Insufficient policy enforcement in StorageAccessAPI in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
Cross-origin data leakage in Google Chrome prior to 150.0.7871.47 exposes sensitive user data from other origins when a victim visits a specially crafted HTML page that exploits insufficient policy enforcement in the StorageAccessAPI. The API, designed to manage third-party storage access in privacy-restricting browser contexts, fails to enforce cross-origin boundaries correctly, allowing an attacker to read data belonging to unrelated origins. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must actively navigate to an attacker-controlled HTML page - passive or drive-by exploitation without user interaction is not possible (UI:R in CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.5 (Medium) is driven primarily by the High confidentiality impact with no integrity or availability impact (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a crafted HTML page containing JavaScript that invokes the StorageAccessAPI to request and gain unauthorized access to cross-origin storage data. When a victim browses to the malicious page (required user interaction per UI:R), the page silently reads cookies, localStorage, or session tokens from a target origin and exfiltrates them to the attacker's server. … |
| Remediation | Update Google Chrome to version 150.0.7871.47 or later using Chrome's built-in update mechanism (Settings → About Chrome) or via enterprise deployment tools. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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