EUVD-2026-44475
GHSA-5cvc-pm9v-pw7p
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network-delivered via crafted page with mandatory victim interaction (UI:R); integrity-only impact from SOP bypass with no confidentiality or availability consequence.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
5DescriptionCVE.org
Insufficient policy enforcement in HTML-in-Canvas in Google Chrome prior to 150.0.7871.125 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Same-origin policy bypass in Google Chrome prior to 150.0.7871.125 enables remote attackers to manipulate cross-origin content integrity through the browser's HTML-in-Canvas rendering subsystem. Exploitation requires a victim to visit a crafted HTML page, making this a socially-engineered attack rather than a fully autonomous one. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a victim user actively navigates to or loads a crafted HTML page under attacker control - this is mandated by the UI:R metric in the CVSS vector and is the primary limiting factor. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.5 (Medium) is driven by AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker creates a malicious webpage that embeds a crafted HTML-in-Canvas construct designed to trigger the policy enforcement gap. A victim is lured to visit this page - via phishing email, malicious advertisement, or compromised site - whereupon Chrome processes the canvas content and the attacker's script bypasses the same-origin policy to manipulate or exfiltrate rendered cross-origin data. … |
| Remediation | Update Google Chrome to version 150.0.7871.125 or later via the browser's built-in update mechanism (Settings > Help > About Google Chrome) or by deploying the update through enterprise management tooling. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-346 – Origin Validation Error
View allSame technique Authentication Bypass
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External POC / Exploit Code
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