CVE-2025-48997 - CVE House
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Status published High CVE-2025-48997

Multer vulnerable to Denial of Service via unhandled exception

Vulnerability Description

Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to `2.0.1` to receive a patch. No known workarounds are available.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

multer
Vulnerable Versions:
>= 1.4.4-lts.1, < 2.0.1

Timeline

Official Publish: June 3rd, 2025
Last Modified: June 3rd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-248

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1203 Exploitation for Client Execution
Execution
T1213 Data from Information Repositories
Collection
T1499.003 Application Exhaustion Flood
Impact