In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a large number of “quality” (i.e. q) parameters, the server may enter a denial of service (DoS) state due to high CPU usage processing those quality values, resulting in minutes of CPU time exhausted processing those quality values.
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorAdjacent
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionActive
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 0.6 → 1.5 |
| 2026-07-21 | cve.org | initial, patch: Official Patch | 0.6 |
Affected Software
| Vendor | Product | Version |
|---|
| apache | nifi | 1.13.0 |
| apache | solr | 8.8.1 |
| apache | spark | 3.1.1 |
| debian | debian_linux | 10.0 |
| eclipse | jetty | ≥ 9.4.7, < 9.4.36 |
| eclipse | jetty | 10.0.0 |
| eclipse | jetty | 11.0.0 |
| eclipse | jetty | 9.4.36 |
| eclipse | jetty | 9.4.6 |
| netapp | e-series_santricity_os_controller | ≥ 11.0.0, ≤ 11.70.1 |
| netapp | e-series_santricity_web_services | All versions |
| netapp | element_plug-in_for_vcenter_server | All versions |
| netapp | hci | All versions |
| netapp | hci_management_node | All versions |
| netapp | management_services_for_element_software | All versions |
| netapp | snap_creator_framework | All versions |
| netapp | snapcenter | All versions |
| netapp | snapmanager | All versions |
| netapp | solidfire | All versions |
| oracle | rest_data_services | < 20.4.3.050.1904 |
| The Eclipse Foundation | Eclipse Jetty | ≤ 9.4.36.v20210114 |
| The Eclipse Foundation | Eclipse Jetty | 10.0.0 |
| The Eclipse Foundation | Eclipse Jetty | 11.0.0 |
| The Eclipse Foundation | Eclipse Jetty | 9.4.6.v20170531 |
Published: 2021-02-26
