Eclipse Jetty HTTP clients can increase memory allocation
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Jetty | 12.0.0 – 12.0.16 | — | No fix listed | CNA |
| — | org.eclipse.jetty.http2:jetty-http2-common (Maven) | 12.0.0 to before 12.0.17 | 12.0.17 | Patch available | GHSA-889j-63jv-qhr8 |
- Jetty VendorEclipse Foundation Affected 12.0.0 – 12.0.16 Fixed in — No fix listed CNA
- org.eclipse.jetty.http2:jetty-http2-common (Maven) Vendor— Affected 12.0.0 to before 12.0.17 Fixed in 12.0.17 Patch available GHSA-889j-63jv-qhr8
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:* | 12.0.0 to before 12.0.17 | Vulnerable | Eclipse Foundation |
- cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:* Versions 12.0.0 to before 12.0.17 Vulnerable ·Eclipse Foundation
Remediation
- Fix · GHSA-889j-63jv-qhr8 org.eclipse.jetty.http2:jetty-http2-common (Maven) Fixed in 12.0.17 Advisory →
Red Hat 9 advisories
- RHSA-2025:13274 Released 2025-08-06 · Red Hat rating ImportantRed Hat AMQ Broker 7.13.1 release and security update
- Red Hat AMQ Broker 7.13.1
- RHSA-2025:10120 Released 2025-07-01 · Red Hat rating ImportantRed Hat Product OCP Tools 4.14 OpenShift Jenkins security update
- OpenShift Developer Tools and Services for OCP 4.14 jenkins-2-plugins-4.14.1750903529-1.el8, jenkins-2.504.2.1750903189-3.el8
- RHSA-2025:10118 Released 2025-07-01 · Red Hat rating ImportantRed Hat Product OCP Tools 4.12 OpenShift Jenkins security update
- OpenShift Developer Tools and Services for OCP 4.12 jenkins-2-plugins-4.12.1750933270-1.el8, jenkins-2.504.2.1750932984-3.el8
Show 6 more Red Hat advisories
- RHSA-2025:10119 Released 2025-07-01 · Red Hat rating ImportantRed Hat Product OCP Tools 4.13 OpenShift Jenkins security update
- OpenShift Developer Tools and Services for OCP 4.13 jenkins-2-plugins-4.13.1750916671-1.el8, jenkins-2.504.2.1750916374-3.el8
- RHSA-2025:10104 Released 2025-07-01 · Red Hat rating ImportantRed Hat Product OCP Tools 4.15 OpenShift Jenkins security update
- OpenShift Developer Tools and Services for OCP 4.15 jenkins-2-plugins-4.15.1750856638-1.el8, jenkins-2.504.2.1750856366-3.el8
- RHSA-2025:10098 Released 2025-07-01 · Red Hat rating ImportantRed Hat Product OCP Tools 4.16 OpenShift Jenkins security update
- OpenShift Developer Tools and Services for OCP 4.16 jenkins-2-plugins-4.16.1750857315-1.el9, jenkins-2.504.2.1750857144-3.el9
- RHSA-2025:10097 Released 2025-07-01 · Red Hat rating ImportantRed Hat Product OCP Tools 4.17 OpenShift Jenkins security update
- OpenShift Developer Tools and Services for OCP 4.17 jenkins-2-plugins-4.17.1750851950-1.el9, jenkins-2.504.2.1750851690-3.el9
- RHSA-2025:10092 Released 2025-07-01 · Red Hat rating ImportantRed Hat Product OCP Tools 4.18 OpenShift Jenkins security update
- OpenShift Developer Tools and Services for OCP 4.18 jenkins-2-plugins-4.18.1750846854-1.el9, jenkins-2.504.2.1750846524-3.el9
- RHSA-2025:7696 Released 2025-05-15 · Red Hat rating ImportantRed Hat Build of Apache Camel 4.10.3 for Spring Boot release, security update.
- Red Hat build of Apache Camel 4.10.3 for Spring Boot
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Developer Tools and Services for OCP 4.12 | Fixed | RHSA-2025:10118 |
| OpenShift Developer Tools and Services for OCP 4.13 | Fixed | RHSA-2025:10119 |
| OpenShift Developer Tools and Services for OCP 4.14 | Fixed | RHSA-2025:10120 |
| OpenShift Developer Tools and Services for OCP 4.15 | Fixed | RHSA-2025:10104 |
| OpenShift Developer Tools and Services for OCP 4.16 | Fixed | RHSA-2025:10098 |
| OpenShift Developer Tools and Services for OCP 4.17 | Fixed | RHSA-2025:10097 |
| OpenShift Developer Tools and Services for OCP 4.18 | Fixed | RHSA-2025:10092 |
| Red Hat AMQ Broker 7.13.1 | Fixed | RHSA-2025:13274 |
| Red Hat build of Apache Camel 4.10.3 for Spring Boot | Fixed | RHSA-2025:7696 |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-1948
- 2026-10-03 Alias added: GHSA-889j-63jv-qhr8
References
Advisory 2
More Eclipse Foundation Jetty vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2026-08807 Digest authentication lossy encoding CVSS 4.0HIGH 8.7
- TI-2026-01972 HTTP Request Smuggling via Chunked Extension Quoted-String Parsing CVSS 3.1CRITICAL 9.1
- TI-2015-01867 The exception handling code in Eclipse Jetty before 9.2.9.v20150224 allows remote… CVSS 3.0HIGH 7.5
- TI-2021-09394 Uncontrolled resource consumption in Eclipse Jetty CVSS 3.1HIGH 7.5
- TI-2021-13463 Information disclosure in Eclipse Jetty CVSS 3.1MEDIUM 5.3
Sources
- CVE-2025-1948 · CVE Program
- CVE-2025-1948 · NVD
- FIRST EPSS
- GHSA-889j-63jv-qhr8 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-1948 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences