Description
Use after free in PDF in Google Chrome prior to 155.0.8059.79 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Published: 2026-10-13
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote code execution within Chrome sandbox
Action: Immediate Patch
AI Analysis

Impact

A use‑after‑free flaw in Chromium’s PDF renderer allows an attacker to run arbitrary code inside the browser sandbox when a user views a malicious HTML page that contains a crafted PDF. The vulnerability is a classic memory corruption issue (CWE‑416) and can lead to the execution of attacker‑supplied code within the sandboxed process.

Affected Systems

The flaw affects Google Chrome versions prior to 155.0.8059.79. Any installation of Chrome running an older release is susceptible.

Risk and Exploitability

The vulnerability carries a CVSS score of 8.8, indicating high severity. The EPSS score is less than 1%, suggesting a low likelihood of widespread exploitation at this time, and it is not listed in the CISA KEV catalog. Exploitation requires that a user visit a crafted web page in Chrome; the attacker can then trigger the use‑after‑free in the PDF renderer and execute code confined to the sandboxed browser process. While the sandbox limits damage, the ability for code execution still poses a significant risk.

Generated by OpenCVE AI on October 16, 2026 at 02:39 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Chrome update to version 155.0.8059.79 or newer
  • Ensure that Chrome’s automatic update feature is enabled so that future security patches are applied automatically
  • If immediate patching is not possible, temporarily disable Chrome’s built-in PDF viewer by setting "Automatically open PDFs in Chrome" to "Ask first" or via chrome://flags to mitigate the use‑after‑free vector

Generated by OpenCVE AI on October 16, 2026 at 02:39 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-4838-1 chromium security update
Debian DSA Debian DSA DSA-6562-1 chromium security update
History

Wed, 14 Oct 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Vendors & Products Google
Google chrome

Wed, 14 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Wed, 14 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: Use after free in PDF
References
Metrics threat_severity

None

 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'}

threat_severity

Important

Tue, 13 Oct 2026 21:15:00 +0000

Type Values Removed Values Added
Description Use after free in PDF in Google Chrome prior to 155.0.8059.79 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-10-15T03:56:14.477Z

Reserved: 2026-10-13T16:49:04.694Z

Link: CVE-2026-110147

cve-icon Vulnrichment

Updated: 2026-10-14T13:17:38.479Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T22:17:34.530

Modified: 2026-10-15T04:18:18.397

Link: CVE-2026-110147

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-13T21:01:47Z

Links: CVE-2026-110147 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-24T03:30:14Z

Weaknesses