VulnerabilityAnalyzed

CVE-2025-1948

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.

HIGH 7.5EPSS 0.75%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.75% probability · 53th percentile
CISA KEV: Not listed
Weakness: CWE-400
Affected: eclipse/jetty
Source: emo@eclipse.org

References

https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8Vendor Advisory
https://gitlab.eclipse.org/security/cve-assignement/-/issues/56Issue Tracking

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.