EUVD-2026-40567
GHSA-x3mf-c66j-h6vv
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network-delivered via crafted page (AV:N, PR:N); user must visit it (UI:R); SOP bypass yields cross-origin integrity impact (I:H) with no confirmed data exfiltration (C:N) or availability effect.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
4DescriptionCVE.org
Inappropriate implementation in WebAppInstalls in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Same-origin policy bypass in Google Chrome's WebAppInstalls component allows remote attackers to compromise cross-origin integrity via a crafted HTML page, affecting all Chrome versions prior to 150.0.7871.47. The flaw stems from an inappropriate implementation (CWE-346, Origin Validation Error) in the PWA installation subsystem, enabling an attacker to perform unauthorized cross-origin writes or manipulations when a user visits attacker-controlled content. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must be running Google Chrome prior to version 150.0.7871.47 on a desktop platform. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 6.5 (Medium) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N reflects a network-reachable attack requiring no privileges and no authentication, but mandates user interaction (victim must visit a crafted page), which substantially limits opportunistic mass exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a crafted HTML page that exploits the WebAppInstalls origin validation flaw, then socially engineers or redirects a Chrome user to visit it. Upon page load, the malicious page triggers the inappropriate implementation in the PWA installation flow, bypassing the same-origin policy and allowing the attacker to manipulate cross-origin content or data in the victim's browser context. … |
| Remediation | Vendor-released patch: Chrome 150.0.7871.47. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-346 – Origin Validation Error
View allSame technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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