CVE-2023-26048

MEDIUM

Eclipse Jetty < 9.4.51 - Denial of Service via Multipart Request with Large Content

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-26048. PoCs published by Trinadh465.

AI-analyzed exploit summary This repository contains the Eclipse Jetty project source code and documentation, including a detailed advisory for CVE-2015-2080 (JetLeak vulnerability). It does not contain exploit code for CVE-2023-26048 but provides technical context and historical vulnerability details.

Description

Jetty is a java based web server and servlet engine. In affected versions servlets with multipart support (e.g. annotated with `@MultipartConfig`) that call `HttpServletRequest.getParameter()` or `HttpServletRequest.getParts()` may cause `OutOfMemoryError` when the client sends a multipart request with a part that has a name but no filename and very large content. This happens even with the default settings of `fileSizeThreshold=0` which should stream the whole part content to disk. An attacker client may send a large multipart request and cause the server to throw `OutOfMemoryError`. However, the server may be able to recover after the `OutOfMemoryError` and continue its service -- although it may take some time. This issue has been patched in versions 9.4.51, 10.0.14, and 11.0.14. Users are advised to upgrade. Users unable to upgrade may set the multipart parameter `maxRequestSize` which must be set to a non-negative value, so the whole multipart content is limited (although still read into memory).

Exploits (1)

nomisec WRITEUP
by Trinadh465 · poc
https://github.com/Trinadh465/jetty_9.4.31_CVE-2023-26048

This repository contains the Eclipse Jetty project source code and documentation, including a detailed advisory for CVE-2015-2080 (JetLeak vulnerability). It does not contain exploit code for CVE-2023-26048 but provides technical context and historical vulnerability details.

Classification
Writeup 90%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Eclipse Jetty (versions 9.2.3 to 9.2.8)
No auth needed
Prerequisites: Network access to vulnerable Jetty server
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Scores

CVSS v3 5.3
EPSS 0.4341
EPSS Percentile 97.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770 CWE-400
Status published
Products (2)
eclipse/jetty < 9.4.51
org.eclipse.jetty/jetty-server 0 - 9.4.51.v20230217Maven
Published Apr 18, 2023
Tracked Since Feb 18, 2026