EUVD-2026-65824
GHSA-vw6h-mw9p-f4hv
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack delivered over network via crafted page (AV:N); side-channel timing precision required (AC:H); victim must visit page (UI:R); only confidentiality impacted through autofill data inference (C:H).
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Observable discrepancy in Autofill in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Observable discrepancy in Chrome's Autofill subsystem allows remote information disclosure via a crafted HTML page, affecting all desktop Chrome versions before 152.0.7977.65. The flaw (CWE-203) enables a network-reachable attacker to infer sensitive stored autofill data - such as addresses or payment fields - by measuring behavioral or timing differences triggered by form elements on a malicious page. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | User interaction is mandatory - the victim must actively browse to a crafted HTML page (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N encodes two key constraints that substantially limit real-world risk despite the High confidentiality rating: attack complexity is High (precise timing or measurement conditions required) and user interaction is mandatory (victim must browse to the attacker-controlled page). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts an HTML page with form fields engineered to trigger measurable autofill behavior discrepancies and distributes a link via phishing or malicious advertising. When a Chrome user visits the page, the attacker's JavaScript measures timing or layout differences as Chrome evaluates autofill candidates, allowing inference of what sensitive data categories - such as saved payment cards or home addresses - the victim has stored. … |
| Remediation | The primary fix is to update Google Chrome to version 152.0.7977.65 or later, as documented in the stable channel update advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-203 – Observable Discrepancy
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External POC / Exploit Code
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