CVE-2026-17858

Uninitialized Use in WebNN in Google Chrome on Windows prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html	Release Notes Vendor Advisory
https://issues.chromium.org/issues/520191468	Permissions Required

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) Uso no inicializado en WebNN en Google Chrome en Windows anterior a 151.0.7922.72 permitió a un atacante remoto filtrar datos de origen cruzado a través de una página HTML manipulada. (Gravedad de seguridad de Chromium: Media)

Information

Published : 2026-07-30 01:16

Updated : 2026-10-23 23:10

NVD link : CVE-2026-17858

Mitre link : CVE-2026-17858

CVE.ORG link : CVE-2026-17858

JSON object : View

Products Affected

google

chrome

microsoft

windows

CWE

CWE-457

Use of Uninitialized Variable

{"id": "CVE-2026-17858", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-17858", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-30T13:42:26.659548Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "chrome-cve-admin@google.com", "affectedData": [{"vendor": "Google", "product": "Chrome", "versions": [{"status": "affected", "version": "151.0.7922.72", "lessThan": "151.0.7922.72", "versionType": "custom"}]}]}], "published": "2026-07-30T01:16:49.553", "references": [{"url": "https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html", "tags": ["Release Notes", "Vendor Advisory"], "source": "chrome-cve-admin@google.com"}, {"url": "https://issues.chromium.org/issues/520191468", "tags": ["Permissions Required"], "source": "chrome-cve-admin@google.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "chrome-cve-admin@google.com", "description": [{"lang": "en", "value": "CWE-457"}]}], "descriptions": [{"lang": "en", "value": "Uninitialized Use in WebNN in Google Chrome on Windows prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)"}, {"lang": "es", "value": "Uso no inicializado en WebNN en Google Chrome en Windows anterior a 151.0.7922.72 permiti\u00f3 a un atacante remoto filtrar datos de origen cruzado a trav\u00e9s de una p\u00e1gina HTML manipulada. (Gravedad de seguridad de Chromium: Media)"}], "lastModified": "2026-10-23T23:10:00.157", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5306E563-AFD7-43CB-AFC8-CE1F449BA94C", "versionEndExcluding": "151.0.7922.72"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "chrome-cve-admin@google.com"}