EUVD-2026-74313
GHSA-cjxh-9m42-gh6h
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L
Renderer pre-compromise required (AC:H); UI spoofing of download metadata is an integrity impact (I:L); no availability impact substantiated by description.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Incorrect authorization in Downloads in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Chrome's Downloads subsystem in versions prior to 153.0.8010.36 contains an incorrect authorization check (CWE-863) that allows an attacker who has already compromised the renderer process to spoof download-related UI elements via a crafted HTML page. This vulnerability is a post-renderer-compromise chaining primitive - it cannot be exploited independently and must be paired with a separate renderer exploit. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two sequential prerequisites: (1) the attacker must have achieved arbitrary code execution within Chrome's renderer process via a separate, unrelated vulnerability - this is the dominant limiting factor; and (2) the victim must visit a specially crafted HTML page (UI:R) that triggers the renderer compromise and the subsequent Downloads authorization abuse. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.2 (Medium) vector AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L and the Chromium team's own 'Medium' rating are consistent and appropriate given the two-stage exploitation requirement. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update Google Chrome to version 153.0.8010.36 or later using Chrome's built-in update mechanism (Settings → Help → About Google Chrome) or via enterprise deployment tooling. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-863 – Incorrect Authorization
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External POC / Exploit Code
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