EUVD-2026-74406
GHSA-6973-j353-j588
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Extension installation requires explicit user action to accept an install prompt, making UI:R more accurate than the official UI:N assignment.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
Missing authorization in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain sensitive information via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Missing authorization in the Extensions subsystem of Google Chrome prior to 153.0.8010.36 enables a remote attacker to obtain sensitive browser information by delivering a crafted Chrome extension that bypasses access control checks. The vulnerability is classified CWE-862 (Missing Authorization), meaning the runtime fails to enforce proper permission boundaries between extension capabilities and protected browser data. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a victim install a crafted Chrome extension authored by the attacker. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The official CVSS vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N assigns no user interaction and no privilege requirement, which creates a notable inconsistency: the description explicitly requires a 'crafted Chrome extension,' and extension installation in Chrome requires user action (accepting an install prompt) or enterprise policy push. … 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, available immediately via Help → About Google Chrome or through enterprise deployment tools (Google Update, Intune, SCCM). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, notify all Chrome users and disable automatic extension installation where possible to slow propagation vectors. …
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Same weakness CWE-862 – Missing Authorization
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External POC / Exploit Code
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