EUVD-2026-50619
GHSA-9j3q-3r6g-76c2
Severity by source
Sources disagree (Medium–Critical)AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Adjacent vector reflects LAN-only reachability; PR:N confirmed by CVSS input; C:L reflects partial cross-origin data disclosure with no integrity or availability impact.
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
Lifecycle Timeline
4DescriptionCVE.org
Insufficient validation of untrusted input in Cast in Google Chrome prior to 151.0.7922.72 allowed an attacker on the local network segment to leak cross-origin data via malicious network traffic. (Chromium security severity: Medium)
AnalysisAI
Cross-origin data leakage in Google Chrome's Cast component allows an unauthenticated attacker positioned on the same local network segment to read data from origins they should not have access to via maliciously crafted network traffic. All Chrome versions prior to 151.0.7922.72 are affected. No public exploit code exists and CISA has not listed this in the KEV catalog, placing real-world risk at low-to-moderate despite the unauthenticated attack vector.
Technical ContextAI
The Cast component in Google Chrome implements the Google Cast protocol, enabling Chrome to stream content to Chromecast and compatible devices over the local network. CWE-20 (Improper Input Validation) indicates that the Cast subsystem fails to adequately sanitize or validate input received from network peers, allowing an attacker-controlled source to inject or manipulate Cast protocol messages. Because Cast inherently operates across the adjacent network boundary (AV:A per CVSS), an attacker must be co-located on the same LAN or WLAN segment. The insufficient validation allows the attacker's malicious traffic to cause the browser to expose data belonging to a different web origin, violating the Same-Origin Policy guarantees users depend on for cross-site isolation. Affected product identified via CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*.
RemediationAI
Update Google Chrome to version 151.0.7922.72 or later, which contains the vendor-released fix per the Stable Channel Update advisory at http://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html. Chrome typically updates automatically, but administrators in managed enterprise environments should push this update via policy. As a compensating control where immediate patching is not feasible, disabling or restricting use of the Cast feature via Chrome enterprise policy (CastEnabled=false) eliminates the attack surface entirely, though this removes the ability to cast to Chromecast and compatible devices. Restricting untrusted devices on shared network segments (e.g., client isolation on Wi-Fi, network segmentation) reduces attacker adjacency opportunity but does not address the underlying flaw.
Same weakness CWE-20 – Improper Input Validation
View allSame technique Information Disclosure
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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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