Description
Use after free in PDF in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
Published: 2026-05-28
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A use‑after‑free issue in Google Chrome’s PDF parser before build 148.0.7778.216 (CWE‑416, CWE‑825) allows a remote attacker to run arbitrary code within the browser’s sandbox through a crafted PDF file. The flaw can compromise the integrity and availability of the Chrome process, and while the description confirms sandbox execution, it does not assert any additional privilege escalation or system‑level impact.

Affected Systems

All desktop installations of Google Chrome older than version 148.0.7778.216 on Windows, macOS, and Linux are affected. No further sub‑version detail is provided, so applying any later stable release that contains the patch is the recommended approach.

Risk and Exploitability

The CVSS score of 8.8 indicates high severity. The EPSS score, listed as less than 1%, suggests a very low probability of exploitation at the time of this analysis, and the vulnerability is not identified in CISA KEV. The attack vector is remote, as the exploit requires the delivery of a malicious PDF file to the user. Based on the description, it is inferred that a user must open or render the PDF in Chrome for the flaw to be triggered; no additional authentication or privilege escalation is required.

Generated by OpenCVE AI on May 29, 2026 at 14:58 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Google Chrome to version 148.0.7778.216 or newer on all affected machines.
  • If an immediate upgrade is not possible, disable the built‑in PDF viewer or block opening PDF files in Chrome until a patched version is available.
  • Use content filtering or a web application firewall to prevent delivery of malicious PDF documents to end users.

Generated by OpenCVE AI on May 29, 2026 at 14:58 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 29 May 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows

Fri, 29 May 2026 12:15:00 +0000

Type Values Removed Values Added
Title Use After Free in PDF Parsing Allows Remote Code Execution in Chrome chromium-browser: Use after free in PDF
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Important


Fri, 29 May 2026 11:30:00 +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'}


Fri, 29 May 2026 01:30:00 +0000

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

Fri, 29 May 2026 00:30:00 +0000

Type Values Removed Values Added
Title Use After Free in PDF Parsing Allows Remote Code Execution in Chrome

Thu, 28 May 2026 22:45:00 +0000

Type Values Removed Values Added
Description Use after free in PDF in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
Weaknesses CWE-416
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-05-29T10:59:36.785Z

Reserved: 2026-05-28T17:25:00.310Z

Link: CVE-2026-9957

cve-icon Vulnrichment

Updated: 2026-05-29T10:26:47.671Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-28T23:16:53.900

Modified: 2026-05-29T16:19:18.157

Link: CVE-2026-9957

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-27T00:00:00Z

Links: CVE-2026-9957 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T15:00:17Z

Weaknesses