CVE-2026-79266

Published Aug 25, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Use after free in DevTools in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)

Analysis

AI-generated

Technical impact

The vulnerability is a use‑after‑free flaw located in the DevTools component of Google Chrome versions prior to 152.0.7977.65. It permits a remote attacker to trigger arbitrary code execution within the browser sandbox after the victim installs a specially crafted Chrome extension. This is a high‑severity flaw, with a CVSS score of 8.8, as assessed by Chromium, with weakness classified as CWE‑416.

Affected Systems

The affected product is Google Chrome. All releases before 152.0.7977.65 are vulnerable. Users on stable channel versions earlier than this should apply the update.

Risk and Exploitability

The flaw, with a CVSS score of 8.8, can be exploited by an attacker who successfully convinces a user to install a malicious extension. Since the attack occurs in the local user context, it requires social engineering. No public exploit is documented and the EPSS score is not available. The vulnerability is not listed in the CISA KEV catalog. The possibility of sandbox escape and arbitrary code execution makes it a significant risk for users who install untrusted extensions.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Chrome to version 152.0.7977.65 or newer.
  • Install only extensions from reputable developers and review permissions before installation.
  • Use Chrome Enterprise policies to block installation of extensions from untrusted sources.

Generated by OpenCVE AI on August 26, 2026 at 01:46 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 Use‑After‑Free in Chrome DevTools Enables Arbitrary Code Execution via Malicious Extension
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Use‑After‑Free in Chrome DevTools Enables Arbitrary Code Execution via Malicious Extension
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/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
Description Use after free in DevTools in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)
Weaknesses CWE-416
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Aug 27, 2026, 3:55 AM
Reserved
Aug 25, 2026, 6:12 AM
Status
Analyzed
Published
Aug 25, 2026, 9:18 PM
Modified
Aug 31, 2026, 6:12 PM