CVE-2025-48976
apache-commons-fileupload: Apache Commons FileUpload DoS via part headers
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 17, 2025
Updated · October 27, 2026
Description
A denial-of-service (DoS) vulnerability has been discovered in the Apache Commons FileUpload library. The flaw stems from insufficient limits placed on multipart headers during file uploads. A remote attacker could exploit this by sending a specially crafted request with an excessively large number of multipart headers. This malicious input can lead to uncontrolled memory consumption within applications utilizing the library, exhausting system resources and causing a denial of service.
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
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 · Allocation of Resources Without Limits or Throttling