EUVD-2026-50638
GHSA-vv96-3637-6hx3
Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Network-exploitable via crafted page (AV:N, PR:N) but requires user visit (UI:R); uninitialized memory leaks only partial cross-origin data (C:L), 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
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
5DescriptionCVE.org
Uninitialized Use in WebXR 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 leakage in Google Chrome's WebXR implementation (versions prior to 151.0.7922.72) arises from an uninitialized memory use flaw exploitable by a remote attacker via a crafted HTML page that must be visited by the victim. The flaw allows partial disclosure of cross-origin data, with no integrity or availability impact. …
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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 web page (UI:R per CVSS vector), making purely passive or drive-by exploitation without any user navigation impossible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 4.3 (Medium) reflects a network-exploitable (AV:N), low-complexity (AC:L), unauthenticated (PR:N) flaw that nonetheless requires user interaction (UI:R) and delivers only limited confidentiality impact (C:L) with zero integrity or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker publishes a crafted HTML page that invokes the WebXR API in a sequence designed to trigger reads from uninitialized memory buffers, then uses JavaScript to exfiltrate the leaked bytes - potentially containing fragments of cross-origin content - back to an attacker-controlled server. The victim must navigate to this page in an unpatched Chrome browser for the attack to succeed. … |
| Remediation | The primary fix is upgrading Google Chrome to version 151.0.7922.72 or later via the stable channel update documented 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-457 – Use of Uninitialized Variable
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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