CVE-2026-13955 - Vulnerability Details

Description

Insufficient validation of untrusted input in CustomTabs in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to perform UI spoofing via a malicious file. (Chromium security severity: Medium)

Published: 2026-06-30

Score: 3.3 Low

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

Insufficient validation of untrusted input in Chrome’s CustomTabs on Android allows a local attacker to supply a malicious file that causes the browser to render a spoofed user interface. The flaw, identified as CWE‑20, enables UI spoofing that could mislead users into interacting with counterfeit content. Though the official Chromium severity is medium, the vulnerability does not afford direct code execution.

Affected Systems

Google Chrome for Android versions earlier than 150.0.7871.47 are affected. CustomTabs is embedded in the browser and can be invoked by local applications that open or serve a file to the browser.

Risk and Exploitability

Exploitation requires local device access to deliver a malicious file through CustomTabs, which is why the attack vector is inferred to be local. The CVSS score of 3.3 indicates low severity, and the EPSS score of less than 1%, coupled with the lack of a KEV listing, suggests a low overall risk and no documented widespread exploitation.

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

Update Google Chrome to version 150.0.7871.47 or later, which contains the validation fix.
Disable or restrict the use of CustomTabs in Chrome when it is unnecessary for your applications to limit exposure.
Enable automatic updates for Chrome so future security patches are applied promptly.
Review and validate any code paths that handle untrusted input for CustomTabs in accordance with CWE‑20 best practices.

Generated by OpenCVE AI on August 3, 2026 at 06:36 UTC.

Tracking

Sign in to view the affected projects.

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 Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00154.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/513508305

History

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

Type	Values Removed	Values Added
Title		UI Spoofing via CustomTabs in Google Chrome for Android

Tue, 28 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome CustomTabs Leads to UI Spoofing

Fri, 24 Jul 2026 18:30:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome CustomTabs Leads to UI Spoofing

Wed, 22 Jul 2026 15:45:00 +0000

Type	Values Removed	Values Added
Title	UI Spoofing Vulnerability in Chrome CustomTabs on Android

Fri, 17 Jul 2026 14:45:00 +0000

Type	Values Removed	Values Added
Title		UI Spoofing Vulnerability in Chrome CustomTabs on Android

Thu, 16 Jul 2026 12:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome CustomTabs Allows Local UI Spoofing

Tue, 14 Jul 2026 20:45:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome CustomTabs Allows Local UI Spoofing

Mon, 13 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Title	Chrome CustomTabs UI Spoofing Vulnerability on Android

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

Type	Values Removed	Values Added
Title		Chrome CustomTabs UI Spoofing Vulnerability on Android

Fri, 10 Jul 2026 04:15:00 +0000

Type	Values Removed	Values Added
Title	Chrome CustomTabs UI Spoofing via Malicious File on Android

Thu, 09 Jul 2026 08:00:00 +0000

Type	Values Removed	Values Added
Title		Chrome CustomTabs UI Spoofing via Malicious File on Android

Wed, 08 Jul 2026 20:00:00 +0000

Type	Values Removed	Values Added
Title	UI Spoofing via Insufficient Validation in Chrome CustomTabs

Tue, 07 Jul 2026 21:45:00 +0000

Type	Values Removed	Values Added
Title		UI Spoofing via Insufficient Validation in Chrome CustomTabs

Mon, 06 Jul 2026 20:45:00 +0000

Type	Values Removed	Values Added
Title	Local UI Spoofing via CustomTabs in Android Chrome

Mon, 06 Jul 2026 03:45:00 +0000

Type	Values Removed	Values Added
Title		Local UI Spoofing via CustomTabs in Android Chrome

Sun, 05 Jul 2026 11:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome CustomTabs Enables Local UI Spoofing

Sat, 04 Jul 2026 23:30:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome CustomTabs Enables Local UI Spoofing

Sat, 04 Jul 2026 15:30:00 +0000

Type	Values Removed	Values Added
Title	Untrusted Input in Chrome CustomTabs Allows Local UI Spoofing

Sat, 04 Jul 2026 08:00:00 +0000

Type	Values Removed	Values Added
Title		Untrusted Input in Chrome CustomTabs Allows Local UI Spoofing

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

Type	Values Removed	Values Added
Title	Insufficient Validation of CustomTabs Causing UI Spoofing in Android Chrome

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

Type	Values Removed	Values Added
Title		Insufficient Validation of CustomTabs Causing UI Spoofing in Android Chrome

Fri, 03 Jul 2026 02:30:00 +0000

Type	Values Removed	Values Added
Title	UI Spoofing via Malicious File in Chrome CustomTabs

Thu, 02 Jul 2026 20:00:00 +0000

Type	Values Removed	Values Added
Title		UI Spoofing via Malicious File in Chrome CustomTabs

Thu, 02 Jul 2026 04:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome CustomTabs Allows Local UI Spoofing

Wed, 01 Jul 2026 20:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome CustomTabs Allows Local UI Spoofing

Wed, 01 Jul 2026 11:15:00 +0000

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

Wed, 01 Jul 2026 10:30:00 +0000

Type	Values Removed	Values Added
Title	Local UI Spoofing via Malicious File in Chrome CustomTabs on Android

Wed, 01 Jul 2026 04:45:00 +0000

Type	Values Removed	Values Added
Title		Local UI Spoofing via Malicious File in Chrome CustomTabs on Android

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

Type	Values Removed	Values Added
Description		Insufficient validation of untrusted input in CustomTabs in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to perform UI spoofing via a malicious file. (Chromium security severity: Medium)
Weaknesses		CWE-20
References		https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html https://issues.chromium.org/issues/513508305

Subscriptions

Google Chrome

MITRE

Status: PUBLISHED

Assigner: Chrome

Published: 2026-06-30T22:38:34.777Z

Updated: 2026-07-01T19:28:06.719Z

Reserved: 2026-06-29T23:04:01.002Z

Link: CVE-2026-13955

Vulnrichment

Updated: 2026-07-01T19:28:02.668Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-03T06:45:03Z

Weaknesses

CWE-20
Improper Input Validation

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

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