Description
Use after free in PDFium in Google Chrome prior to 154.0.8037.57 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted PDF file. (Chromium security severity: High)
Published: 2026-09-29
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

A use‑after‑free flaw in PDFium, the PDF renderer used by Google Chrome, allows a remote attacker to execute arbitrary code inside the browser sandbox when a specially crafted PDF file is opened. The vulnerability is identified as CWE‑416 and can be exploited by supplying a malicious PDF that targets a deallocated memory location, leading to arbitrary code execution

Affected Systems

Google Chrome browsers before version 154.0.8037.57 are vulnerable. Users of the stable channel on desktop platforms who have not upgraded to the latest release are affected

Risk and Exploitability

The CVSS score of 8.8 indicates high severity, but the EPSS score is currently unavailable, suggesting the publicly disclosed likelihood of exploitation is uncertain. The vulnerability is not listed in the CISA KEV catalog, implying no confirmed public exploits yet. The attack vector is inferred to be remote through a crafted PDF file; a user must open the malicious document for the exploit to succeed

Generated by OpenCVE AI on September 30, 2026 at 13:02 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Google Chrome to version 154.0.8037.57 or later
  • Disable or block PDF file rendering on the affected machines until the update is applied, for example via local or group policy file‑type restrictions
  • Launch Chrome with the --disable-pdf-viewer flag to prevent processing of PDFs until a patch is installed

Generated by OpenCVE AI on September 30, 2026 at 13:02 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6513-1 chromium security update
History

Thu, 08 Oct 2026 12:15:00 +0000

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

None

 threat_severity

Important

Wed, 30 Sep 2026 16:45:00 +0000

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

Wed, 30 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via PDFium Use‑After‑Free in Chrome

Wed, 30 Sep 2026 00:30:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via PDFium Use‑After‑Free in Chrome

Tue, 29 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Tue, 29 Sep 2026 20:30:00 +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'}

ssvc

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

Tue, 29 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Description Use after free in PDFium in Google Chrome prior to 154.0.8037.57 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted PDF file. (Chromium security severity: High)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-09-30T03:56:50.500Z

Reserved: 2026-09-22T05:09:38.280Z

Link: CVE-2026-95338

cve-icon Vulnrichment

Updated: 2026-09-29T19:08:06.702Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-29T18:17:26.363

Modified: 2026-09-30T16:27:39.880

Link: CVE-2026-95338

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-29T17:31:41Z

Links: CVE-2026-95338 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T13:15:19Z

Weaknesses