CVE-2026-13851

Local access-control bypass via crafted HTML

Published Jun 30, 2026 · Updated Jun 30, 2026

Improper input validation in WebAppInstalls in Google Chrome on Android before 150.0.7871.47 allows local users to bypass access controls. The component accepts values from a crafted HTML page without sufficient validation before applying discretionary-access-control decisions; implementation details remain restricted in the Chromium issue tracker. An attacker must be able to supply the crafted page locally on an Android device; the disclosed consequence is limited to bypassing discretionary access control, with no reported data disclosure or code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in WebAppInstalls in Google Chrome on Android before 150.0.7871.47 allows local users to bypass access controls. The component accepts values from a crafted HTML page without sufficient validation before applying discretionary-access-control decisions; implementation details remain restricted in the Chromium issue tracker. An attacker must be able to supply the crafted page locally on an Android device; the disclosed consequence is limited to bypassing discretionary access control, with no reported data disclosure or code execution.

The record

CVE
CVE-2026-13851
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=150.0.7871.47 <150.0.7871.47

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Go standard library · Google Chromeversion=150.0.7871.47 <150.0.7871.47

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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