CVE-2026-13891

Chrome Extension Renderer Input Validation Vulnerability Allows Privilege Escalation

Published Jun 30, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Insufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

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
Type Values Removed Values Added
Title Chrome Extension Renderer Input Validation Vulnerability Allows Privilege Escalation
Type Values Removed Values Added
Title Unvalidated Extension Input in Chrome Allows Privilege Escalation
Type Values Removed Values Added
Title Unvalidated Extension Input in Chrome Allows Privilege Escalation
Type Values Removed Values Added
Title Chrome Extension Renderer Privilege Escalation via Unvalidated Input
Type Values Removed Values Added
Title Chrome Extension Renderer Privilege Escalation via Unvalidated Input
Type Values Removed Values Added
Title Insufficient Validation in Chrome Extensions Enables Renderer-Based Privilege Escalation
Type Values Removed Values Added
Title Insufficient Validation in Chrome Extensions Enables Renderer-Based Privilege Escalation
Type Values Removed Values Added
Title Privilege Escalation via Unvalidated Input in Chrome Extensions Renderer
Type Values Removed Values Added
Title Privilege Escalation via Unvalidated Input in Chrome Extensions Renderer
Type Values Removed Values Added
Title Chrome Extension Input Validation Weakness Enabling Renderer Privilege Escalation
Type Values Removed Values Added
Title Chrome Extension Input Validation Weakness Enabling Renderer Privilege Escalation
Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Title Privilege Escalation via Untrusted Input in Chrome Extensions
Type Values Removed Values Added
Title Privilege Escalation via Untrusted Input in Chrome Extensions
Type Values Removed Values Added
Title Insufficient Validation in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Title Insufficient Validation in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Remote Privilege Escalation
Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Remote Privilege Escalation
Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Title Insufficient Input Validation in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Title Privilege Escalation through Unvalidated Input in Chrome Extensions
Type Values Removed Values Added
Title Privilege Escalation through Unvalidated Input in Chrome Extensions
Type Values Removed Values Added
Title Untrusted Input in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/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'}

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Untrusted Input in Chrome Extensions Enables Privilege Escalation
Type Values Removed Values Added
Description Insufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-20
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jul 2, 2026, 3:55 AM
Reserved
Jun 29, 2026, 11:03 PM
Status
Analyzed
Published
Jun 30, 2026, 11:17 PM
Modified
Oct 25, 2026, 9:10 PM