EUVD-2026-50788
GHSA-wm9r-82qw-cfp5
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 requiring active user visit (UI:R); impact is cross-origin data leakage only (C:L), no integrity or availability effect, no scope change.
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
Insufficient policy enforcement in Prefetch 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: High)
AnalysisAI
Cross-origin data leakage in Google Chrome's Prefetch subsystem prior to version 151.0.7922.72 allows a remote, unauthenticated attacker to read data belonging to other origins by inducing a victim to visit a crafted HTML page. The flaw arises from insufficient policy enforcement (CWE-346) within the prefetch mechanism, which fails to properly honour cross-origin isolation boundaries and permits attacker-controlled pages to infer or extract content from resources on distinct origins. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two concrete conditions: first, the victim must be running Google Chrome in any version prior to 151.0.7922.72 on a desktop platform; second, the victim must actively visit an attacker-controlled HTML page that specifically instructs Chrome to prefetch cross-origin resources - delivery vectors include phishing links, malicious advertisements, or compromised third-party websites. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 4.3 (Medium) accurately reflects the bounded nature of this vulnerability: network-reachable (AV:N) with low attack complexity (AC:L) and no privileges required (PR:N) but mandating active user interaction (UI:R), with impact limited exclusively to partial confidentiality loss (C:L) and no integrity or availability dimension. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers a domain and hosts a crafted HTML page that uses Chrome's prefetch API to initiate speculative requests targeting cross-origin resources - for example, a banking portal or webmail page the victim is authenticated to. The victim is directed to the malicious page via a phishing email or malicious advertisement, and Chrome's insufficient policy enforcement allows the attacker's page to read or infer the prefetched cross-origin content, leaking session-specific data back to the attacker's server. … |
| Remediation | The primary and definitive fix is to update Google Chrome to version 151.0.7922.72 or later via Chrome's built-in silent updater or by deploying the updated installer through enterprise software management tooling; the vendor advisory is available 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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