CVE Database›Document archive›CVE-2023-42794

CVE-2023-42794

tomcat: FileUpload: DoS due to accumulation of temporary files on Windows

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Severity

Moderate

Red Hat Product Security

5.9

CVSS 3.1

Review impact separately from score.

Published · October 10, 2023

Updated · October 2, 2026

Description

A flaw was found in Apache Tomcat. An incomplete cleanup vulnerability with the internal fork of the Commons FileUpload package exposed a potential denial of service on Windows if a web application opened a stream for an uploaded file but failed to close the stream. The file would never be deleted from the disk, potentially leading to a denial of service due to the disk being full.

Statement

Red Hat rates this flaw as a Moderate impact as this would depend on how much information an attacker has over the environment (version and disk for example, increasing the Attack Complexity) as there is no guarantee the attack is successful. This may affect only scenarios where running an application on Windows.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is currently available for this flaw.

CVSS / CWE

CVSS 3.1 · 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-459 · Incomplete Cleanup