EUVD-2026-40640
GHSA-w89m-8ch9-hcx6
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
S:C assessed over vendor's S:U because cross-origin data leakage inherently breaches a separate security scope (another origin); other metrics match the provided vector.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Inappropriate implementation in PerformanceAPIs in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Cross-origin data leakage in Google Chrome's PerformanceAPI implementation (versions prior to 150.0.7871.47) allows a remote unauthenticated attacker to infer sensitive data from other browser origins by luring a victim to visit a crafted HTML page. The flaw exploits timing measurements exposed by the Performance API to create a side-channel that bypasses the Same-Origin Policy for limited data reads. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a victim user visit an attacker-controlled HTML page using an unpatched version of Google Chrome (prior to 150.0.7871.47) on any supported desktop platform (Windows, macOS, Linux). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is moderate-to-low despite the network-exploitable vector. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a malicious web page and social-engineers a victim into visiting it while the victim is simultaneously authenticated to a sensitive web application on another origin. The malicious page issues crafted cross-origin requests and uses PerformanceAPI timing measurements to detect response time variations, inferring the presence, absence, or partial content of protected resources on the target origin - such as whether a user is logged in, or the approximate size of a private API response. … |
| Remediation | Update Google Chrome to stable channel version 150.0.7871.47 or later, which contains the vendor-released patch for this issue. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-352 – Cross-Site Request Forgery (CSRF)
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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