EUVD-2026-40643
GHSA-h88f-5fmx-g22j
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Local file input with no privilege requirement; active user interaction mandatory; impact restricted to UI integrity spoofing with no confidentiality or availability effect.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Lifecycle Timeline
3DescriptionCVE.org
Insufficient validation of untrusted input in CustomTabs in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to perform UI spoofing via a malicious file. (Chromium security severity: Medium)
AnalysisAI
UI spoofing in Google Chrome's CustomTabs component on Android enables a local attacker to manipulate what a victim sees within an in-app browser session by supplying a malicious file, affecting all Chrome for Android versions prior to 150.0.7871.47. The CVSS score of 3.3 (Low) and EPSS of 0.13% (3rd percentile) reflect constrained real-world impact: exploitation is local, requires user interaction, and produces only integrity-level spoofing. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local attacker access to an Android device - either physical access or the ability to place a malicious file in a location accessible to the Chrome CustomTabs component. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | All available signals converge on low real-world priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with local access to an Android device - through physical proximity, a malicious app, or a shared device - places a crafted file accessible to the CustomTabs component. When the victim opens a Custom Tab session through an app (such as a social media or e-commerce application), the malicious file causes Chrome's UI chrome elements to display a spoofed origin or fraudulent content, potentially tricking the victim into believing they are on a trusted site and submitting credentials or approving actions. … |
| Remediation | Update Google Chrome on Android to version 150.0.7871.47 or later via the Google Play Store or Chrome's built-in auto-update mechanism. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
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