Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Cross-origin data access constitutes a scope change (S:C) affecting another origin's security domain; C:H reflects potentially sensitive session data, consistent with Chromium's 'High' severity.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Incorrect authorization in Paint in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Incorrect authorization in Chrome's Paint rendering component (versions prior to 153.0.8010.36) allows a remote attacker to read cross-origin data by directing a user to a crafted HTML page. The flaw (CWE-863) bypasses same-origin policy enforcement within the Paint subsystem, exposing rendered or pixel-level data from other origins to the attacking script. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to actively visit a crafted HTML page using Google Chrome prior to 153.0.8010.36 - mandatory user interaction (UI:R) is the primary limiting factor. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD-assigned CVSS 4.3 (S:U/C:L) materially understates risk relative to Chromium's own 'High' severity label. … 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 to Google Chrome 153.0.8010.36 or later; this is the vendor-confirmed patched release per 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-863 – Incorrect Authorization
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-74515
GHSA-g7pv-92gh-724g