CVE-2026-5038

Published: Giu 15, 2026 Last Modified: Giu 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,3
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: low

Description

AI Translation Available

Impact: multer versions 2.0.0-alpha.1 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service when using diskStorage. Aborted or malformed multipart uploads leave orphaned partial files on disk because the Readable.pipe() call does not propagate the stream destroy signal to
the underlying fs.WriteStream. An attacker can exhaust disk space by triggering many aborted uploads, with no application bug required.

Patches: Users should upgrade to multer 2.2.0 (2.x line) or 3.0.0-alpha.2 (3.x prerelease). Both versions track in-flight write streams and clean them up on the abort path.

Workarounds: None.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0025
Percentile
0,2th
Updated

EPSS Score Trend (Last 2 Days)

459

Incomplete Cleanup

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Other Confidentiality Integrity
Potential Impacts:
Other Read Application Data Modify Application Data Dos: Resource Consumption (Other)
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Multer by Expressjs

Product Information
Vendor Expressjs
Product Multer
Version Range Affected
From 2.0.0 (inclusive)
To 2.2.0 (exclusive)
cpe:2.3:a:expressjs:multer:*:*:*:*:*:node.js:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Multer by Expressjs

Product Information
Vendor Expressjs
Product Multer
Version 3.0.0
cpe:2.3:a:expressjs:multer:3.0.0:alpha1:*:*:*:node.js:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://cna.openjsf.org/security-advisories.html
https://cna.openjsf.org/security-advisories.html
https://github.com/expressjs/multer/security/advisories/GHS…
https://github.com/expressjs/multer/security/advisories/GHSA-3p4h-7m6x-2hcm