EUVD-2026-50764
GHSA-fjfr-63v9-742p
Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Network-delivered via crafted page, no privileges needed, mandatory user interaction, scope unchanged, impact limited to partial cross-origin data disclosure only.
vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Insufficient policy enforcement in GuestView in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Cross-origin data leak in Google Chrome's GuestView component (all desktop versions prior to 151.0.7922.72) enables remote attackers to read cross-origin content by luring a victim to a crafted HTML page. The flaw stems from insufficient policy enforcement (CWE-346, Origin Validation Error) within the GuestView subsystem, which handles embedded guest content such as <webview> elements in Chrome Apps and extensions. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to actively visit an attacker-controlled or compromised webpage using Google Chrome prior to version 151.0.7922.72 on a desktop platform (confirmed by UI:R in the CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 4.3 (Medium) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N reflects a network-reachable, low-complexity attack requiring no attacker privileges but mandating user interaction; impact is confined to partial confidentiality loss with no integrity or availability effect. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a crafted HTML page that triggers Chrome's GuestView code path - for example, via an embedded <webview> element - and exploits the insufficient policy enforcement to read data from a cross-origin context loaded within the page. When a user running an unpatched Chrome version visits this page, the attacker's script can exfiltrate cross-origin content such as authentication tokens or page fragments to an attacker-controlled server. … |
| Remediation | Update Google Chrome to version 151.0.7922.72 or later, the vendor-released patch confirmed by the Chrome Releases blog at http://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-346 – Origin Validation Error
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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