Description
Insufficient validation of untrusted input in SanitizerAPI in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
Published: 2026-06-30
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Insufficient validation in the SanitizerAPI of Google Chrome allows a remote attacker to craft a malicious HTML page that bypasses the same‑origin policy when a victim opens it. This undermines the isolation between web origins, enabling an attacker to read or alter cross‑origin data within the victim’s browser. The flaw is classified as CWE‑20 and can compromise confidentiality and integrity of data handled by the browser.

Affected Systems

All Google Chrome versions released prior to 150.0.7871.47 are affected. Users running any of those pre‑release versions are vulnerable until an update is applied.

Risk and Exploitability

The vulnerability carries a CVSS score of 6.5, indicating medium severity. Its EPSS score of < 1 % suggests a low likelihood of exploitation, and it currently is not listed in the CISA KEV catalog. A typical attack scenario involves a malicious web server delivering a crafted page; a victim who loads the page would trigger the same‑origin policy bypass. Based on the description, it is inferred that no additional credentials or elevated privileges are needed for exploitation.

Generated by OpenCVE AI on July 16, 2026 at 12:14 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 150.0.7871.47 or later.
  • Apply the vendor’s update that corrects the input‑validation flaw in SanitizerAPI, which addresses CWE‑20 by ensuring strict validation of untrusted data.
  • Enable automatic updates for Chrome to ensure timely delivery of security patches.
  • If an immediate upgrade is not possible, restrict browser access to untrusted content or isolate the affected installation using network segmentation to limit potential exposure.

Generated by OpenCVE AI on July 16, 2026 at 12:14 UTC.

Tracking

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

Thu, 16 Jul 2026 12:30:00 +0000

Type Values Removed Values Added
Title Same-Origin Policy Bypass via SanitizerAPI Validation Flaw in Google Chrome

Tue, 14 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Title Same-Origin Policy Bypass via SanitizerAPI Validation Flaw in Google Chrome

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

Type Values Removed Values Added
Title Same-origin policy bypass via SanitizerAPI in Google Chrome

Sun, 12 Jul 2026 02:45:00 +0000

Type Values Removed Values Added
Title Same-origin policy bypass via SanitizerAPI in Google Chrome

Sat, 11 Jul 2026 02:45:00 +0000

Type Values Removed Values Added
Title Same-origin Policy Bypass via SanitizerAPI Input Validation Flaw

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

Type Values Removed Values Added
Title Same-origin Policy Bypass via SanitizerAPI Input Validation Flaw

Thu, 09 Jul 2026 07:45:00 +0000

Type Values Removed Values Added
Title Same-origin policy bypass from input validation flaw in Chrome

Wed, 08 Jul 2026 03:30:00 +0000

Type Values Removed Values Added
Title Same-origin policy bypass from input validation flaw in Chrome

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

Type Values Removed Values Added
Title Same‑origin Policy Bypass via Untrusted Input in Chrome SanitizerAPI

Tue, 07 Jul 2026 04:15:00 +0000

Type Values Removed Values Added
Title Same‑origin Policy Bypass via Untrusted Input in Chrome SanitizerAPI

Mon, 06 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
Title Chrome Same-Origin Policy Bypass via SanitizerAPI Input Validation

Sun, 05 Jul 2026 23:00:00 +0000

Type Values Removed Values Added
Title Chrome Same-Origin Policy Bypass via SanitizerAPI Input Validation

Sun, 05 Jul 2026 07:00:00 +0000

Type Values Removed Values Added
Title Same-origin policy bypass through SanitizerAPI input validation in Google Chrome

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

Type Values Removed Values Added
Title Same-origin policy bypass through SanitizerAPI input validation in Google Chrome

Fri, 03 Jul 2026 23:45:00 +0000

Type Values Removed Values Added
Title Same-Origin Policy Bypass via SanitizerAPI Input Validation Flaw in Google Chrome

Fri, 03 Jul 2026 05:30:00 +0000

Type Values Removed Values Added
Title Same-Origin Policy Bypass via SanitizerAPI Input Validation Flaw in Google Chrome

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

Type Values Removed Values Added
Title Same‑Origin Policy Bypass via SanitizerAPI Input Validation in Chrome

Thu, 02 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Title Same‑Origin Policy Bypass via SanitizerAPI Input Validation in Chrome

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

Type Values Removed Values Added
Title Same-Origin Policy Bypass via SanitizerAPI Input Validation in Google Chrome

Wed, 01 Jul 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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

Type Values Removed Values Added
Title Same-Origin Policy Bypass via SanitizerAPI Input Validation in Google Chrome

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

Type Values Removed Values Added
Title Remote Same-Origin Policy Bypass via SanitizerAPI in Chrome

Wed, 01 Jul 2026 08:00:00 +0000

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

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

Type Values Removed Values Added
Title Remote Same-Origin Policy Bypass via SanitizerAPI in Chrome

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

Type Values Removed Values Added
Description Insufficient validation of untrusted input in SanitizerAPI in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-20
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-07-01T16:16:36.637Z

Reserved: 2026-06-29T23:04:20.661Z

Link: CVE-2026-14023

cve-icon Vulnrichment

Updated: 2026-07-01T14:02:55.638Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-16T12:15:16Z

Weaknesses
  • CWE-20

    Improper Input Validation