EUVD-2026-74387
GHSA-6c7x-68jc-55r9
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description explicitly requires social engineering to install extension, making UI:R accurate; no integrity or availability impact applies.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
Incorrect authorization in Permissions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Incorrect authorization in Google Chrome's Permissions subsystem before version 153.0.8010.36 enables remote attackers to exfiltrate sensitive browser information through a crafted Chrome extension that requires social engineering to install. The flaw (CWE-863) causes Chrome's permission brokering layer to incorrectly authorize an extension's access to protected browser data, resulting in high-confidence confidentiality impact with no integrity or availability consequence. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to install a crafted Chrome extension, which the attacker must deliver via social engineering such as a phishing lure, deceptive install prompt on a web page, or a sideloaded .crx package. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The official CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N) appears to overcredit this vulnerability: the description explicitly states social engineering is required to deliver the crafted extension, making UI:N inaccurate - user interaction is a concrete and non-trivial prerequisite. … 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, which resolves this authorization flaw as confirmed by the Chrome Stable Channel advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory Chrome versions across your organization and communicate patch availability to stakeholders. …
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Same weakness CWE-863 – Incorrect Authorization
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External POC / Exploit Code
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