Description
Use after free in Source in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Published: 2026-11-03
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

A use‑after‑free flaw exists in Chrome’s rendering engine that allows a malicious actor to run arbitrary code within the browser’s sandbox. The vulnerability arises when a crafted HTML page is loaded, causing a freed memory region to be accessed and enabling the attacker to inject code that the GPU or other components may execute. Because the attack is confined to the browser sandbox, the impact is limited to the user’s session and any privileged processes that the sandbox may interact with.

Affected Systems

The flaw affects Google Chrome on desktop platforms prior to version 157.0.8103.38. Users running any earlier release are susceptible if they encounter a malicious web page containing the crafted payload.

Risk and Exploitability

The reported CVE does not yet have an EPSS score, and it is not listed in the CISA KEV catalog. The Chromium security team rates the issue as medium severity. The attack vector is inferred to be an externally crafted HTML page that a remote attacker can serve to a victim. An attacker must be able to load the page in the victim’s Chrome browser; no additional network access or local privileges are required. Given the lack of public exploit data, the exploitation probability is considered moderate, but the potential to run arbitrary code remains high for users not applying the updated release.

Generated by OpenCVE AI on November 3, 2026 at 22:59 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 157.0.8103.38 or later.
  • Ensure that automatic updates are enabled so future mitigations are applied promptly.
  • If you use a managed rollout from your organization, coordinate with the IT team to push the update to all endpoints.

Generated by OpenCVE AI on November 3, 2026 at 22:59 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 03 Nov 2026 23:15:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free enabling remote code execution via crafted HTML in Chrome

Tue, 03 Nov 2026 22:30:00 +0000

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'}


Tue, 03 Nov 2026 20:45:00 +0000

Type Values Removed Values Added
Description Use after free in Source in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-416
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-03T21:42:15.367Z

Reserved: 2026-11-03T10:34:04.207Z

Link: CVE-2026-121238

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-03T21:17:34.027

Modified: 2026-11-03T22:19:44.803

Link: CVE-2026-121238

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T23:00:08Z

Weaknesses