Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eclipse | Jetty | >= 12.0.0, < 12.0.17 |
Related Weaknesses (CWE)
References
- https://github.com/jetty/jetty.project/security/advisories/GHSA-889j-63jv-qhr8Vendor Advisory
- https://gitlab.eclipse.org/security/cve-assignement/-/issues/56Issue Tracking
FAQ
What is CVE-2025-1948?
CVE-2025-1948 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2025-1948?
CVE-2025-1948 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-1948?
Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Jetty.