EUVD-2026-69739
GHSA-3gr4-2pf9-pg8h
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Renderer pre-compromise required justifies AC:H; crafted page visit requires UI:R; impact is limited to low confidentiality with no integrity or availability consequence.
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
5DescriptionCVE.org
Missing authorization in FileSystem in Google Chrome prior to 152.0.7977.75 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Missing FileSystem authorization in Google Chrome prior to 152.0.7977.75 allows an attacker who has already achieved renderer process compromise to bypass the web origin policy via a crafted HTML page. The flaw (CWE-862) grants cross-origin file access that the browser's same-origin policy should prohibit, extending the impact of any renderer exploitation chain. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the attacker has already compromised the Chrome renderer process through a separate, independent vulnerability - this is a hard prerequisite, not a soft configuration dependency. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 3.1 (AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N) accurately reflects the narrow real-world impact: exploitation demands high attack complexity because the renderer process must already be compromised before this authorization gap can be reached. … 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 152.0.7977.75 or later; this is a vendor-released patch confirmed in the stable channel update advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-862 – Missing Authorization
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External POC / Exploit Code
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