CVE-2026-78969

Published Aug 25, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Uninitialized resource in Video in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Analysis

AI-generated

Technical impact

This flaw arises from an uninitialized video resource in Chrome’s rendering engine, allowing a crafted HTML page to cause the browser to read memory inside its sandbox. The vulnerability is rooted in a CWE‑908 issue, where uninitialized data is accessed, and can expose sensitive in‑process information to a remote attacker.

Affected Systems

The issue affects all Chrome releases prior to 152.0.7977.65 for all supported operating systems, as specified by Google. Upgrading to version 152.0.7977.65 or later resolves the problem.

Risk and Exploitability

While the exploit requires a specially crafted web page, it can be delivered remotely via a standard HTTP or HTTPS request. The CVSS score of 6.5 and the EPSS score of < 1% indicate a medium severity with a low probability of exploitation, and the vulnerability is not listed in CISA’s KEV catalog. This flaw still exposes a non‑trivial confidentiality risk by allowing an attacker to read arbitrary memory within the browser process, potentially leaking secrets or facilitating further attacks.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Chrome to version 152.0.7977.65 or newer
  • Enable automatic updates to receive the latest security patches
  • In enterprise environments, use Chrome Enterprise policies to deploy the update promptly

Generated by OpenCVE AI on August 28, 2026 at 22:55 UTC.

Tracking

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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
Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Sandbox Memory Disclosure via Uninitialized Video Resource in Chrome
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'}

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Sandbox Memory Disclosure via Uninitialized Video Resource in Chrome
Type Values Removed Values Added
Description Uninitialized resource in Video in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-908
References
Weaknesses
  • CWE-908

    Use of Uninitialized Resource

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Aug 28, 2026, 7:08 PM
Reserved
Aug 25, 2026, 6:05 AM
Status
Analyzed
Published
Aug 25, 2026, 9:17 PM
Modified
Aug 31, 2026, 1:40 PM