Description
Incorrect authorization in Downloads in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)
Published: 2026-08-25
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Remote authorization bypass
Action: Apply patch
AI Analysis

Impact

An incorrect authorization check in the Downloads module of Google Chrome allows a remote attacker to bypass system access restrictions by presenting a crafted HTML page. The flaw exists in all Chrome builds prior to version 152.0.7977.65 and relies on user interaction with a malicious page. The vulnerability allows unauthorized manipulation of download controls and is rated medium by Chromium's security team.

Affected Systems

All builds of Google Chrome older than 152.0.7977.65 on any operating system are affected.

Risk and Exploitability

Chromium classifies this issue as medium severity (CVSS score 5.4) and it is not listed in CISA's KEV catalog. EPSS score is < 1%, so exploitation probability is very low. The attack requires a victim to open or interact with a malicious HTML page, so social engineering is the primary exploitation scenario.

Generated by OpenCVE AI on August 31, 2026 at 17:41 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Chrome to version 152.0.7977.65 or later, which contains the authorized fix.
  • If the update cannot be applied immediately, disable or restrict automatic downloads from untrusted sites until the patch is installed.
  • Educate users about phishing and social engineering attacks so they avoid malicious download pages.

Generated by OpenCVE AI on August 31, 2026 at 17:41 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

Mon, 31 Aug 2026 19:15:00 +0000

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

Mon, 31 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Title Chrome Downloads Authorization Bypass via Crafted HTML

Mon, 31 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Mon, 31 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

Wed, 26 Aug 2026 01:15:00 +0000

Type Values Removed Values Added
Title Chrome Downloads Authorization Bypass via Crafted HTML

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 Incorrect authorization in Downloads in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-863
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-08-31T16:04:57.374Z

Reserved: 2026-08-25T06:03:55.906Z

Link: CVE-2026-78898

cve-icon Vulnrichment

Updated: 2026-08-31T16:04:53.639Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-25T21:17:47.183

Modified: 2026-08-31T18:57:29.820

Link: CVE-2026-78898

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-31T17:45:02Z

Weaknesses