EUVD-2026-74367
GHSA-rcfq-p5h6-phq7
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L
Renderer-compromise prerequisite justifies AC:H; UI spoofing of FedCM dialogs implies I:L; no clear availability impact from spoofing alone warrants A:N.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Improper input validation in FedCM 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
UI spoofing in Google Chrome's FedCM (Federated Credential Management) implementation allows an attacker who has already compromised the renderer process to inject malformed identity-provider dialog elements via a crafted HTML page, potentially deceiving users into submitting credentials to an attacker-controlled endpoint. All Chrome desktop versions prior to 153.0.8010.36 are affected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a pre-existing compromise of the Chrome renderer process - this is the explicit prerequisite stated in the description and reflected in AC:H in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 4.2 (AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L) appropriately reflects the elevated complexity imposed by the renderer-compromise prerequisite, which substantially limits exploitability compared to a direct network-accessible flaw. … 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 | Upgrade Google Chrome to version 153.0.8010.36 or later using the browser's built-in update mechanism (Menu → Help → About Google Chrome) or via enterprise deployment tooling such as Google Admin console or MSI/MSP packages. … 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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