CVE-2025-1948

Eclipse Jetty HTTP clients can increase memory allocation

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

In Eclipse Jetty versions 12.0.0 to 12.0.16 included, an HTTP/2 client can specify a very large value for the HTTP/2 settings parameter SETTINGS_MAX_HEADER_LIST_SIZE.
The Jetty HTTP/2 server does not perform validation on this setting, and tries to allocate a ByteBuffer of the specified capacity to encode HTTP responses, likely resulting in OutOfMemoryError being thrown, or even the JVM process exiting.

A flaw was found in Eclipse Jetty. This vulnerability allows denial of service attack via an HTTP/2 client specifying a very large value for the SETTINGS_MAX_HEADER_LIST_SIZE parameter.

In Eclipse Jetty versions 12.0.0 to 12.0.16 included, an HTTP/2 client can specify a very large value for the HTTP/2 settings parameter SETTINGS_MAX_HEADER_LIST_SIZE. The Jetty HTTP/2 server does not perform validation on this setting, and tries to allocate a ByteBuffer of the specified capacity to encode HTTP responses, likely resulting in OutOfMemoryError being thrown, or even the JVM process exiting.

Red Hat build of Apache Camel 4.10.3 for Spring Boot release and security update is now available.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-03-04 CVE Reserved
2025-05-08 CVE Published
2025-05-08 CVE Updated
2025-06-09 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (4)

URL	Tag	Source
https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8
https://gitlab.eclipse.org/security/cve-assignement/-/issues/56

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2025-1948	2025-05-15
https://bugzilla.redhat.com/show_bug.cgi?id=2365137	2025-05-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Eclipse Foundation Search vendor "Eclipse Foundation"		Jetty Search vendor "Eclipse Foundation" for product "Jetty"				>= 12.0.0 <= 12.0.16 Search vendor "Eclipse Foundation" for product "Jetty" and version " >= 12.0.0 <= 12.0.16"		en		Affected