CVE-2026-13851 - Vulnerability Details

Description

Insufficient validation of untrusted input in WebAppInstalls in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to bypass discretionary access control via a crafted HTML page. (Chromium security severity: High)

Published: 2026-06-30

Score: 9.1 Critical

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

The flaw involves insufficient validation of untrusted input in WebAppInstalls on Android, which allows a local attacker to bypass discretionary access control. This weakness, classified as CWE-20, permits an attacker to elevate privileges by executing crafted HTML content within Chrome, leading to unauthorized data access and potential further compromise of device resources.

Affected Systems

Google Chrome on Android devices running any version prior to 150.0.7871.47 is affected. The vulnerability resides in the WebAppInstalls component of the Chrome browser.

Risk and Exploitability

The vulnerability can be exploited by a local attacker who can open a malicious HTML page within Chrome. The EPSS score is < 1%, while the CVSS score of 9.1 indicates high severity; the vulnerability is rated high in Chromium’s internal severity, indicating that exploitation is realistically possible and could lead to a local privilege escalation or broader access to protected resources. The flaw is not listed in the CISA KEV catalog, but its local nature and high severity warrant immediate patching.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Google

Chrome

affected

Version	Status	Constraints
`150.0.7871.47`	affected	< 150.0.7871.47

No data.

Vendor Product Confidence Versions

Google

Chrome

100%

Version	Status	Scheme	Platform
`[150.0.7871.47,150.0.7871.47)`	affected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Upgrade Chrome on Android to version 150.0.7871.47 or later when available
If an upgrade cannot be applied, disable or remove the WebAppInstalls feature via Chrome settings or enterprise policy to prevent the flaw from being exploitable
Restrict device permissions and user access to the local file system and web content to reduce the ability of a local attacker to load malicious HTML pages

Generated by OpenCVE AI on August 3, 2026 at 06:45 UTC.

Tracking

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Advisories

Source	ID	Title
Debian DLA	DLA-4672-1	chromium security update
Debian DSA	DSA-6378-1	chromium security update

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00286.

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/519692255

History

Mon, 03 Aug 2026 07:15:00 +0000

Type	Values Removed	Values Added
Title	Local Access Control Bypass via Crafted HTML in Chrome Android WebAppInstalls

Wed, 29 Jul 2026 23:15:00 +0000

Type	Values Removed	Values Added
Title		Local Access Control Bypass via Crafted HTML in Chrome Android WebAppInstalls

Sun, 26 Jul 2026 00:00:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome WebAppInstalls Enables Local Access Control Bypass

Tue, 21 Jul 2026 17:30:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome WebAppInstalls Enables Local Access Control Bypass

Fri, 17 Jul 2026 15:15:00 +0000

Type	Values Removed	Values Added
Title	Insufficient validation of untrusted input in WebAppInstalls allows local attacker to bypass discretionary access control via crafted HTML

Thu, 16 Jul 2026 00:30:00 +0000

Type	Values Removed	Values Added
Title		Insufficient validation of untrusted input in WebAppInstalls allows local attacker to bypass discretionary access control via crafted HTML

Tue, 14 Jul 2026 12:15:00 +0000

Type	Values Removed	Values Added
Title	Local Access Control Bypass via Malicious HTML in Chrome WebAppInstalls on Android

Sun, 12 Jul 2026 03:15:00 +0000

Type	Values Removed	Values Added
Title		Local Access Control Bypass via Malicious HTML in Chrome WebAppInstalls on Android

Sat, 11 Jul 2026 03:00:00 +0000

Type	Values Removed	Values Added
Title	Local Access Control Bypass via Untrusted Input in Chrome WebAppInstalls on Android

Fri, 10 Jul 2026 04:30:00 +0000

Type	Values Removed	Values Added
Title		Local Access Control Bypass via Untrusted Input in Chrome WebAppInstalls on Android

Thu, 09 Jul 2026 03:15:00 +0000

Type	Values Removed	Values Added
Title	Privilege Escalation via WebAppInstalls Input Validation Flaw in Chrome Android

Tue, 07 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Title		Privilege Escalation via WebAppInstalls Input Validation Flaw in Chrome Android

Mon, 06 Jul 2026 21:00:00 +0000

Type	Values Removed	Values Added
Title	Local Access Control Bypass via WebAppInstalls in Google Chrome on Android

Mon, 06 Jul 2026 08:00:00 +0000

Type	Values Removed	Values Added
Title		Local Access Control Bypass via WebAppInstalls in Google Chrome on Android

Sun, 05 Jul 2026 20:00:00 +0000

Type	Values Removed	Values Added
Title	Local Access Control Bypass in Chrome WebAppInstalls via Crafted HTML Page

Sun, 05 Jul 2026 04:15:00 +0000

Type	Values Removed	Values Added
Title		Local Access Control Bypass in Chrome WebAppInstalls via Crafted HTML Page

Sat, 04 Jul 2026 04:30:00 +0000

Type	Values Removed	Values Added
Title	Local Access Control Bypass in Chrome Android WebAppInstalls via Untrusted Input

Thu, 02 Jul 2026 23:15:00 +0000

Type	Values Removed	Values Added
Title		Local Access Control Bypass in Chrome Android WebAppInstalls via Untrusted Input

Thu, 02 Jul 2026 09:30:00 +0000

Type	Values Removed	Values Added
Title	Local Access Control Bypass via Crafted HTML in Chrome's WebAppInstalls Component

Thu, 02 Jul 2026 00:45:00 +0000

Type	Values Removed	Values Added
Title		Local Access Control Bypass via Crafted HTML in Chrome's WebAppInstalls Component

Wed, 01 Jul 2026 19:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Input Validation in Chrome WebAppInstalls Allows Local Access Control Bypass

Wed, 01 Jul 2026 16:45:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Input Validation in Chrome WebAppInstalls Allows Local Access Control Bypass

Wed, 01 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 11:00:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation Enables Access Control Bypass in Chrome's WebAppInstalls on Android

Wed, 01 Jul 2026 09:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Google Google chrome
Vendors & Products		Google Google chrome

Wed, 01 Jul 2026 03:30:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation Enables Access Control Bypass in Chrome's WebAppInstalls on Android

Tue, 30 Jun 2026 23:15:00 +0000

Type	Values Removed	Values Added
Description		Insufficient validation of untrusted input in WebAppInstalls in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to bypass discretionary access control via a crafted HTML page. (Chromium security severity: High)
Weaknesses		CWE-20
References		https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html https://issues.chromium.org/issues/519692255

Subscriptions

Google Chrome

MITRE

Status: PUBLISHED

Assigner: Chrome

Published: 2026-06-30T22:37:56.527Z

Updated: 2026-07-01T19:07:38.201Z

Reserved: 2026-06-29T23:03:33.480Z

Link: CVE-2026-13851

Vulnrichment

Updated: 2026-07-01T14:39:07.401Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-03T07:00:05Z

Weaknesses

CWE-20
Improper Input Validation

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction None

Exploitation none

Automatable yes

Technical Impact total

Subscriptions

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