Description
Insufficient validation of untrusted input in iOSWeb in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
Published: 2026-06-30
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability lies in the iOSWeb component of Chrome for iOS, where insufficient validation of untrusted input enables a specially crafted HTML page to trigger heap corruption. This input‑validation weakness (CWE‑20) is classified as Critical by Chromium. The CVE notes that a remote attacker could potentially exploit the heap corruption, but no further outcome such as code execution is described in the official data.

Affected Systems

All installations of Chrome for iOS that use a build older than 150.0.7871.47 are impacted. The description refers only to iOS, but no iOS version is specified, so every iOS installation running an affected Chrome build is at risk. Users who open a malicious HTML page in Chrome on a vulnerable device could trigger the crash.

Risk and Exploitability

The CVSS score of 8.8 indicates a high potential impact. The EPSS score of less than 1% suggests a low probability of exploitation, and the vulnerability is not listed in the CISA KEV catalog. The attack requires a user to load a malicious HTML page or visit a malicious URL within Chrome, so interaction is needed. No public exploits have been reported, so the current risk can be considered moderate while the potential impact remains high.

Generated by OpenCVE AI on August 2, 2026 at 01:11 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Chrome for iOS to version 150.0.7871.47 or later.
  • Until the update is installed, avoid loading or visiting untrusted HTML content in Chrome.
  • In managed deployments, enforce browsing policies that warn or block disallowed HTML files to reduce the chance of exploitation.

Generated by OpenCVE AI on August 2, 2026 at 01:11 UTC.

Tracking

Sign in to view the affected projects.

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

Sun, 02 Aug 2026 01:30:00 +0000

Type Values Removed Values Added
Title Chrome for iOS iOSWeb Heap Corruption via Crafted HTML

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

Type Values Removed Values Added
Title Heap Corruption via Crafted HTML in Chrome for iOS

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

Type Values Removed Values Added
Title Heap Corruption via Crafted HTML in Chrome for iOS

Fri, 17 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Untrusted Input in Chrome iOS Web

Wed, 15 Jul 2026 11:45:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Untrusted Input in Chrome iOS Web

Mon, 13 Jul 2026 17:00:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Insufficient Input Validation in Chrome for iOS

Sat, 11 Jul 2026 17:45:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Insufficient Input Validation in Chrome for iOS

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

Type Values Removed Values Added
Title Heap Corruption Exploit in iOSWeb of Chrome for iOS

Thu, 09 Jul 2026 08:45:00 +0000

Type Values Removed Values Added
Title Heap Corruption Exploit in iOSWeb of Chrome for iOS

Wed, 08 Jul 2026 20:45:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Crafted HTML in Chrome iOS WebView

Wed, 08 Jul 2026 04:15:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Crafted HTML in Chrome iOS WebView

Tue, 07 Jul 2026 16:45:00 +0000

Type Values Removed Values Added
Title Chrome for iOS Heap Corruption via Insufficient Input Validation

Mon, 06 Jul 2026 13:00:00 +0000

Type Values Removed Values Added
Title Chrome for iOS Heap Corruption via Insufficient Input Validation

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

Type Values Removed Values Added
Title Insufficient Input Validation in iOSWeb Enables Heap Corruption through Crafted HTML

Sun, 05 Jul 2026 07:45:00 +0000

Type Values Removed Values Added
Title Insufficient Input Validation in iOSWeb Enables Heap Corruption through Crafted HTML

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

Type Values Removed Values Added
Title Heap Corruption in Chrome for iOS via Untrusted HTML

Fri, 03 Jul 2026 20:45:00 +0000

Type Values Removed Values Added
Title Heap Corruption in Chrome for iOS via Untrusted HTML

Fri, 03 Jul 2026 06:15:00 +0000

Type Values Removed Values Added
Title iOSWeb Heap Corruption via Crafted HTML in Chrome for iOS

Thu, 02 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Title iOSWeb Heap Corruption via Crafted HTML in Chrome for iOS

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

Type Values Removed Values Added
Title Untrusted Input Heap Corruption in Chrome iOS WebView

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

Type Values Removed Values Added
Title Untrusted Input Heap Corruption in Chrome iOS WebView

Wed, 01 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Title Insufficient Validation of Untrusted Input in iOSWeb Leading to Potential Heap Corruption in Chrome for iOS
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 12:00:00 +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 of Untrusted Input in iOSWeb Leading to Potential Heap Corruption in Chrome for iOS

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

Type Values Removed Values Added
Description Insufficient validation of untrusted input in iOSWeb in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
Weaknesses CWE-20
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-07-02T03:57:28.835Z

Reserved: 2026-06-29T23:03:14.678Z

Link: CVE-2026-13777

cve-icon Vulnrichment

Updated: 2026-07-01T17:16:08.013Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-02T01:15:13Z

Weaknesses
  • CWE-20

    Improper Input Validation