CVE-2025-1948CWE-400

Eclipse Jetty HTTP clients can increase memory allocation

High · published May 8, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
55.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00781 · 55.5th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2025-05-08T17:48Z
EPSS history
Timeline
  • 08 MAY 17:48Z
    Eclipse Jetty HTTP clients can increase memory allocation
    cvelistv5