Description
Information leak in Extensions in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to obtain cross-origin data via a crafted Chrome extension. (Chromium security severity: Medium)
Published: 2026-08-25
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Information Disclosure
Action: Immediate Patch
AI Analysis

Impact

A remote attacker can exploit a flaw in the Chrome extension system to read cross‑origin data by installing a malicious extension that the user believes is legitimate. The vulnerability is an Information Exposure weakness (CWE‑200) that allows the extension to bypass the browser’s normal same‑origin data restrictions.

Affected Systems

Google Chrome, available on all desktop platforms, is affected for versions earlier than 152.0.7977.65. The issue is reported to exist only before that release and has been addressed in later updates.

Risk and Exploitability

The flaw is exploitable only when a user installs a malicious extension, typically through social‑engineering techniques. No public exploit has been documented and the EPSS score is <1%, with a CVSS score of 6.5. The vulnerability is not listed in CISA KEV and is rated medium by Chromium, indicating a moderate confidentiality risk for users with vulnerable versions.

Generated by OpenCVE AI on August 28, 2026 at 18:45 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Chrome to the latest release that includes the 152.0.7977.65 update or newer to remove the extension information‑leak flaw.
  • Disable or remove any extensions that are unfamiliar or that grant broad permissions, especially those installed from unverified sources.
  • Educate users to be cautious with extensions: verify the publisher, review requested permissions, and avoid installing extensions from untrusted sites.

Generated by OpenCVE AI on August 28, 2026 at 18:45 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 14:00:00 +0000

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

Fri, 28 Aug 2026 19:15:00 +0000

Type Values Removed Values Added
Title Extension Information Leak in Google Chrome via Social Engineering

Fri, 28 Aug 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:H/I:N/A:N'}

ssvc

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

Tue, 25 Aug 2026 23:15:00 +0000

Type Values Removed Values Added
Title Extension Information Leak in Google Chrome via Social Engineering
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 Information leak in Extensions in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to obtain cross-origin data via a crafted Chrome extension. (Chromium security severity: Medium)
Weaknesses CWE-200
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-08-28T16:23:20.863Z

Reserved: 2026-08-25T06:05:13.495Z

Link: CVE-2026-78960

cve-icon Vulnrichment

Updated: 2026-08-28T16:22:50.459Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-25T21:17:52.070

Modified: 2026-08-31T13:40:35.530

Link: CVE-2026-78960

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T19:00:11Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor