EUVD-2026-74437
GHSA-pwfx-cvw3-39gw
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Network delivery via extension, user must install it (UI:R), no privileges needed; impact is integrity-only origin-policy bypass with no C/A component.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
Incorrect authorization in Web Authentication in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Low)
AnalysisAI
Incorrect authorization in the Web Authentication (WebAuthn) API implementation of Google Chrome prior to 153.0.8010.36 allows a remote attacker to bypass the web origin policy via a crafted Chrome extension. The bypass permits unauthorized cross-origin interaction with WebAuthn credentials, resulting in limited integrity impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to install a specially crafted Chrome extension on their browser - this is not a passive drive-by attack. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is low. … 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 | Vendor-released patch: Chrome 153.0.8010.36. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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