CVE-2026-14040 - Vulnerability Details

Description

Use after free in BrowserTag in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: Low)

Published: 2026-06-30

Score: 8.8 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

Use‑after‑free in the BrowserTag component of Google Chrome permits an attacker who persuades a user to install a malicious extension to corrupt heap memory and potentially execute arbitrary local code; this flaw is identified as CWE‑416.

Affected Systems

All desktop builds of Google Chrome versions earlier than 150.0.7871.47 are affected; based on typical platform coverage it is inferred that Windows, macOS, and Linux are included, but the description does not explicitly state platforms.

Risk and Exploitability

The CVSS score of 8.8 indicates high severity, yet the EPSS score of <1% shows a very low likelihood of exploitation in the near term and the vulnerability is not listed in the CISA KEV catalog. The likely attack vector is the installation of a crafted Chrome extension, which requires social engineering to convince a user to install it; based on the description, it is inferred that once installed the malicious extension can trigger the use‑after‑free in BrowserTag, leading to local heap corruption that may be leveraged for code execution. The exploitation does not require elevated privileges and is limited to the user’s environment.

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
Avoid installing extensions from untrusted or unknown sources
If a patch cannot be applied immediately, remove or disable any suspicious or newly installed extensions and monitor for anomalous behavior

Generated by OpenCVE AI on July 17, 2026 at 13:58 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 Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0021.

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/497488593

History

Wed, 15 Jul 2026 23:45:00 +0000

Type	Values Removed	Values Added
Title	Use‑After‑Free in BrowserTag Enabling Heap Corruption via Malicious Chrome Extension

Tue, 14 Jul 2026 20:15:00 +0000

Type	Values Removed	Values Added
Title		Use‑After‑Free in BrowserTag Enabling Heap Corruption via Malicious Chrome Extension

Mon, 13 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Title	Use‑After‑Free in Chrome BrowserTag Enables Heap Corruption via Malicious Extension

Sun, 12 Jul 2026 10:45:00 +0000

Type	Values Removed	Values Added
Title		Use‑After‑Free in Chrome BrowserTag Enables Heap Corruption via Malicious Extension

Sat, 11 Jul 2026 09:30:00 +0000

Type	Values Removed	Values Added
Title	Use-After-Free Vulnerability in Chrome BrowserTag May Enable Local Heap Corruption

Fri, 10 Jul 2026 18:00:00 +0000

Type	Values Removed	Values Added
Title		Use-After-Free Vulnerability in Chrome BrowserTag May Enable Local Heap Corruption

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

Type	Values Removed	Values Added
Title	Use‑after‑Free in Chrome BrowserTag Enables Heap Corruption via Malicious Extension

Wed, 08 Jul 2026 19:45:00 +0000

Type	Values Removed	Values Added
Title		Use‑after‑Free in Chrome BrowserTag Enables Heap Corruption via Malicious Extension

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

Type	Values Removed	Values Added
Title	Use‑After‑Free in BrowserTag Leading to Heap Corruption via Malicious Chrome Extension

Mon, 06 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Title		Use‑After‑Free in BrowserTag Leading to Heap Corruption via Malicious Chrome Extension

Mon, 06 Jul 2026 03:30:00 +0000

Type	Values Removed	Values Added
Title	Use‑After‑Free in Chrome BrowserTag Allows Local Heap Corruption via Malicious Extension

Sun, 05 Jul 2026 14:45:00 +0000

Type	Values Removed	Values Added
Title		Use‑After‑Free in Chrome BrowserTag Allows Local Heap Corruption via Malicious Extension

Sat, 04 Jul 2026 23:15:00 +0000

Type	Values Removed	Values Added
Title	Use after free vulnerability in Chrome’s BrowserTag enabling local code execution

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

Type	Values Removed	Values Added
Title		Use after free vulnerability in Chrome’s BrowserTag enabling local code execution

Sat, 04 Jul 2026 07:45:00 +0000

Type	Values Removed	Values Added
Title	Use‑after‑Free in BrowserTag Exploits via Malicious Chrome Extension

Fri, 03 Jul 2026 20:00:00 +0000

Type	Values Removed	Values Added
Title		Use‑after‑Free in BrowserTag Exploits via Malicious Chrome Extension

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

Type	Values Removed	Values Added
Title	Chrome BrowserTag Use‑After‑Free Enables Heap Corruption via Malicious Extension

Thu, 02 Jul 2026 22:30:00 +0000

Type	Values Removed	Values Added
Title		Chrome BrowserTag Use‑After‑Free Enables Heap Corruption via Malicious Extension

Thu, 02 Jul 2026 11:30:00 +0000

Type	Values Removed	Values Added
Title	Use‑After‑Free in BrowserTag Enables Heap Corruption via Malicious Chrome Extension

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

Type	Values Removed	Values Added
Title		Use‑After‑Free in BrowserTag Enables Heap Corruption via Malicious Chrome Extension

Wed, 01 Jul 2026 19:15:00 +0000

Type	Values Removed	Values Added
Title	Use-After-Free in BrowserTag Allows Heap Corruption via Malicious Extensions

Wed, 01 Jul 2026 14:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 12:15:00 +0000

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

Wed, 01 Jul 2026 12:00:00 +0000

Type	Values Removed	Values Added
Title		Use-After-Free in BrowserTag Allows Heap Corruption via Malicious Extensions

Wed, 01 Jul 2026 05:30:00 +0000

Type	Values Removed	Values Added
Title	Use‑After‑Free in BrowserTag Allows Heap Corruption via Malicious Extension in Chrome

Wed, 01 Jul 2026 02:30:00 +0000

Type	Values Removed	Values Added
Title		Use‑After‑Free in BrowserTag Allows Heap Corruption via Malicious Extension in Chrome

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

Type	Values Removed	Values Added
Description		Use after free in BrowserTag in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: Low)
Weaknesses		CWE-416
References		https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html https://issues.chromium.org/issues/497488593

Subscriptions

Google Chrome

MITRE

Status: PUBLISHED

Assigner: Chrome

Published: 2026-06-30T22:39:05.567Z

Updated: 2026-07-01T19:17:06.106Z

Reserved: 2026-06-29T23:11:29.964Z

Link: CVE-2026-14040

Vulnrichment

Updated: 2026-07-01T13:23:46.818Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-07-17T14:00:16Z

Weaknesses

CWE-416
Use After Free

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

Exploitation none

Automatable no

Technical Impact total

Subscriptions

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