EUVD-2026-34567
GHSA-qj96-2mg8-p4q2
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Inappropriate implementation in Media in Google Chrome prior to 149.0.7827.53 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 Media component (versions prior to 149.0.7827.53) enables remote attackers to exfiltrate sensitive information from cross-origin pages by luring a victim to a crafted HTML page. The CVSS vector confirms unauthenticated network access with high confidentiality impact (C:H), though user interaction is required (UI:R). No public exploit identified at time of analysis, and EPSS at 0.03% (11th percentile) indicates low near-term mass exploitation probability, aligning with the Chromium team's 'Medium' severity rating.
Technical ContextAI
The vulnerability resides in Chrome's Media component - the browser subsystem responsible for loading, processing, and rendering media resources via HTML elements and related APIs. The CWE-352 (Cross-Site Request Forgery) classification, combined with the 'inappropriate implementation' descriptor and the 'CSRF' tag, suggests the Media component fails to properly enforce cross-origin boundaries when handling media resource requests or responses, potentially allowing a malicious origin to induce media-related requests that expose data belonging to a victim origin. This is an information-disclosure variant of CSRF rather than a state-changing attack, consistent with the CVSS profile of C:H/I:N/A:N. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U) confirms low attack complexity and unchanged scope - exploitation remains within the browser context and does not escape to the underlying OS. The Chromium issue tracker entry (https://issues.chromium.org/issues/500508725) is the authoritative technical source but may be access-restricted pending broader patch adoption.
RemediationAI
The primary fix is to upgrade Google Chrome to version 149.0.7827.53 or later, which contains the vendor-released patch per the stable channel update advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html. Chrome's built-in auto-update mechanism should handle this transparently for most end users; enterprise administrators should verify deployment via Chrome Browser Cloud Management or Group Policy and confirm the installed version reaches 149.0.7827.53. No specific workarounds are documented in available sources. As an interim compensating control for unpatched deployments, enabling Chrome's Strict Site Isolation (--site-per-process, which is default in modern Chrome) may reduce cross-origin data leakage risk, though this is not confirmed as sufficient to block this specific vector. Restricting users from browsing untrusted external pages via proxy filtering reduces exposure but carries significant usability trade-offs. Note that Chromium-based browser vendors (Edge, Brave, etc.) should be monitored for their own patch releases addressing the same upstream issue.
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Same weakness CWE-352 – Cross-Site Request Forgery (CSRF)
View allVendor StatusVendor
SUSE
| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
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