EUVD-2026-50846
GHSA-j795-4rhg-3gv3
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
AC:H reflects mandatory renderer pre-compromise; C:L only as cross-origin data disclosure is partial; no integrity or availability impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Insufficient policy enforcement in Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Cross-origin data leakage in Google Chrome's Passwords component (versions prior to 151.0.7922.72) enables a remote attacker who has already compromised the renderer process to exfiltrate password data across origin boundaries via a crafted HTML page. The root cause is insufficient policy enforcement (CWE-346: Origin Validation Error), meaning the browser's same-origin policy is not correctly applied within the Passwords subsystem when the renderer is already under attacker control. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two distinct preconditions: first, the attacker must have already compromised the Chrome renderer process through a separate, independent vulnerability - this is explicitly stated in the CVE description ('remote attacker who had compromised the renderer process'). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N) yields a base score of 3.1 (Low), and the signal constellation fully supports this low urgency rating. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has already exploited a separate renderer-process vulnerability in Chrome (e.g., a V8 or Blink memory corruption bug) then serves the victim a crafted HTML page that leverages the insufficient policy enforcement in the Passwords component. The compromised renderer issues cross-origin credential requests that bypass origin validation, causing the Passwords subsystem to disclose saved credentials belonging to a different origin back to the attacker-controlled renderer context. … |
| Remediation | The primary remediation is upgrading Google Chrome to version 151.0.7922.72 or later, which includes the vendor-released patch. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-346 – Origin Validation Error
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External POC / Exploit Code
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