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CVE-2025-1948: Eclipse Jetty HTTP clients can increase memory allocation
7.5
CVSS
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.
Classification
CVE ID: CVE-2025-1948
CVSS Base Severity: HIGH
CVSS Base Score: 7.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Problem Types
CWE-400 Uncontrolled Resource ConsumptionAffected Products
Vendor: Eclipse Foundation
Product: Jetty
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 16.34% (scored less or equal to compared to others)
EPSS Date: 2025-06-06 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-1948https://gitlab.eclipse.org/security/cve-assignement/-/issues/56
https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8