Description
Missing authorization in InterestGroups in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted PDF file. (Chromium security severity: Low)
Published: 2026-08-25
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Remote Bypass of System Access via Crafted PDF
Action: Immediate Patch
AI Analysis

Impact

The vulnerability is a missing authorization flaw in Chrome’s InterestGroups feature that allows a remote attacker, once the renderer process is compromised, to bypass system access restrictions by supplying a specially crafted PDF file. The flaw does not directly execute code but enables unauthorized system access if the renderer is already compromised. The Chromium security team rated the issue as low severity.

Affected Systems

All users of Google Chrome versions prior to 152.0.7977.65 are affected. The flaw resides in the renderer process and impacts any platform where Chrome is installed and where PDF rendering is enabled.

Risk and Exploitability

EPSS score < 1% and the vulnerability is not listed in the CISA KEV catalog. Because the flaw requires compromise of the renderer process, the attack vector is limited to situations where a user has opened a malicious PDF in an untrusted context or where the renderer has been otherwise subverted. The CVSS score of 6.5 indicates a moderate risk, and the prerequisite conditions suggest that immediate attention is needed to prevent potential escalation.

Generated by OpenCVE AI on August 27, 2026 at 17:10 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 152.0.7977.65 or later to apply the vendor patch
  • Disable the InterestGroups feature through enterprise policy or by setting the corresponding Chrome flag
  • Limit exposure to malicious PDFs by disabling remote PDF rendering or only opening documents from trusted sources

Generated by OpenCVE AI on August 27, 2026 at 17:10 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-4771-1 chromium security update
Debian DSA Debian DSA DSA-6482-1 chromium security update
History

Fri, 28 Aug 2026 15:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Thu, 27 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Title Bypass System Access via Crafted PDF in Chrome InterestGroups

Thu, 27 Aug 2026 15:30:00 +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'}


Tue, 25 Aug 2026 23:30:00 +0000

Type Values Removed Values Added
Title Bypass System Access via Crafted PDF in Chrome InterestGroups

Tue, 25 Aug 2026 23:00:00 +0000

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

Tue, 25 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Description Missing authorization in InterestGroups in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted PDF file. (Chromium security severity: Low)
Weaknesses CWE-862
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-08-27T15:07:53.241Z

Reserved: 2026-08-25T06:07:36.776Z

Link: CVE-2026-79021

cve-icon Vulnrichment

Updated: 2026-08-27T15:07:49.704Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-25T21:17:57.960

Modified: 2026-08-28T14:40:32.720

Link: CVE-2026-79021

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-27T17:15:05Z

Weaknesses