EUVD-2026-74308
GHSA-jpqc-gpr9-7pp8
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
AC:H reflects mandatory renderer-compromise prerequisite; C:L for partial cross-origin data only; no integrity or availability impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Missing authorization in FileSystem in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Cross-origin data disclosure in Google Chrome's FileSystem component allows a remote attacker who has already compromised the renderer process to bypass authorization checks and read data from origins other than the attacker-controlled page. Affected versions are all Chrome releases prior to 153.0.8010.36. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two sequential conditions to be satisfied: first, the attacker must have already achieved renderer process compromise via a separate vulnerability - this CVE is not exploitable as a standalone initial-access vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS base score of 3.1 (AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N) accurately reflects the constrained real-world risk: AC:H encodes the renderer-compromise prerequisite, C:L caps the impact at partial data disclosure, and there is no integrity or availability component. … 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; this is the vendor-released patch confirmed in the 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. |
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Same weakness CWE-862 – Missing Authorization
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External POC / Exploit Code
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