CVE-2025-1948

HIGH

Eclipse Jetty 12.0.0-12.0.16 - Denial of Service via HTTP/2 SETTINGS_MAX_HEADER_LIST_SIZE

Title source: llm

Description

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.

References (2)

Core 2

Core References

Vendor Advisory

https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8

Issue Tracking

https://gitlab.eclipse.org/security/cve-assignement/-/issues/56

Scores

CVSS v3 7.5

EPSS 0.0058

EPSS Percentile 69.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-400

Status published

Products (2)

eclipse/jetty 12.0.0 - 12.0.17

org.eclipse.jetty.http2/jetty-http2-common 12.0.0 - 12.0.17Maven

Published May 08, 2025

Tracked Since Feb 18, 2026