CVE-2026-5038

A flaw was found in multer. This vulnerability allows a remote attacker to trigger a Denial of Service (DoS) by initiating and then aborting or sending malformed multipart uploads. This action leaves orphaned partial files on the disk, which can lead to the exhaustion of available disk space without requiring any specific application bug.

This is an Important denial of service vulnerability in multer when configured to use diskStorage. An attacker can exploit this flaw by initiating and then aborting or sending malformed multipart uploads, leading to the accumulation of orphaned partial files and eventual disk space exhaustion on affected Red Hat products that utilize multer for file handling.

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 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.