EUVD-2026-40746
GHSA-cvpc-8wff-778c
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Network-delivered crafted page requires no attacker privileges but mandates user navigation; cross-origin data leak yields high confidentiality impact with zero integrity or availability effect.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Insufficient policy enforcement in Related-Website-Sets 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: Low)
AnalysisAI
Cross-origin data leakage in Google Chrome prior to 150.0.7871.47 stems from insufficient policy enforcement in the Related-Website-Sets feature, enabling a remote attacker to read sensitive cross-origin data by delivering a crafted HTML page to a victim. The CVSS 6.5 score with High confidentiality impact reflects meaningful exposure potential, though Google internally rated this as Low severity and EPSS sits at 0.17% (7th percentile), suggesting limited real-world exploitation risk. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the victim is running Google Chrome for desktop in a version prior to 150.0.7871.47 and visits an attacker-controlled HTML page - user interaction in the form of page navigation is mandatory (UI:R confirmed by CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N vector indicates a network-reachable, low-complexity attack requiring no attacker privileges but mandating user interaction, with high confidentiality impact and no integrity or availability effect. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers a domain and crafts an HTML page that exploits the Related-Website-Sets policy enforcement flaw to read data from a cross-origin context the attacker's site should not be able to access. The attacker then delivers a link to this page via phishing, malvertising, or embedding in a compromised site, and any Chrome user prior to 150.0.7871.47 who visits the page has cross-origin data silently exfiltrated to the attacker. … |
| Remediation | The primary fix is to update Google Chrome to version 150.0.7871.47 or later, as documented in the Chrome stable channel release notes at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-693 – Protection Mechanism Failure
View allSame technique Information Disclosure
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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