GHSA-6wf9-jmg9-vxcc · Severity: medium · Ecosystem: maven — XStream can cause a Denial of Service
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
Conclusion & alert: CVE-2021-39140 is rated Exploit Available (51.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.12%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-10 | 0.05% | 0.12% | +0.07% |
| 2 | 2026-02-25 | 0.05% | 0.05% | -0.00% |
| 3 | 2026-02-18 | — | 0.05% | — |
Full EPSS history (30 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 6.3 | 3.1 | MEDIUM |
|
1.8 | 4.0 | [email protected] |
| 6.3 | 2.0 | MEDIUM |
|
6.8 | 6.9 | [email protected] |
GHSA-6wf9-jmg9-vxcc · Severity: medium · Ecosystem: maven — XStream can cause a Denial of Service
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2021-39140 not yet assigned priority: Debian including 1 source packages (libxstream-java), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-39140 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-39140 |
suse
|
high | CVE-2021-39140 severity important: SUSE including 12 source package names (5.0.0-beta1.2.122:xstream-1.4.18-3.14.1, 5.1.0.6.40:xstream-1.4.18-3.14.1, …), 47 product×package rows across 31 product lines (Container suse/manager/5.0/x86_64/server, Container suse/multi-linux-manager/5.1/x86_64/server, … (31 product lines)): Fixed 47. | https://www.suse.com/security/cve/CVE-2021-39140/ |
ubuntu
|
medium | CVE-2021-39140 medium priority: Ubuntu including 1 source packages (libxstream-java), 10 status rows across 10 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, trusty, upstream, xenial): not-affected 5, ignored 2, released 2, needs-triage 1. | https://ubuntu.com/security/CVE-2021-39140 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xstream | xstream | < 1.4.18 | cpe:2.3:a:xstream:xstream:*:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| netapp | snapmanager | — | cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:oracle:*:* |
| netapp | snapmanager | — | cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:sap:*:* |
| oracle | business_activity_monitoring | 12.2.1.4.0 | cpe:2.3:a:oracle:business_activity_monitoring:12.2.1.4.0:*:*:*:*:*:*:* |
| oracle | commerce_guided_search | 11.3.2 | cpe:2.3:a:oracle:commerce_guided_search:11.3.2:*:*:*:*:*:*:* |
| oracle | communications_billing_and_revenue_management_elastic_charging_engine | 11.3 | cpe:2.3:a:oracle:communications_billing_and_revenue_management_elastic_charging_engine:11.3:*:*:*:*:*:*:* |
| oracle | communications_billing_and_revenue_management_elastic_charging_engine | 12.0 | cpe:2.3:a:oracle:communications_billing_and_revenue_management_elastic_charging_engine:12.0:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_automated_test_suite | 1.9.0 | cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_binding_support_function | 1.10.0 | cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.10.0:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_policy | 1.14.0 | cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:* |
| oracle | communications_unified_inventory_management | 7.3.4 | cpe:2.3:a:oracle:communications_unified_inventory_management:7.3.4:*:*:*:*:*:*:* |
| oracle | communications_unified_inventory_management | 7.3.5 | cpe:2.3:a:oracle:communications_unified_inventory_management:7.3.5:*:*:*:*:*:*:* |
| oracle | communications_unified_inventory_management | 7.4.0 | cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.0:*:*:*:*:*:*:* |
| oracle | communications_unified_inventory_management | 7.4.1 | cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.1:*:*:*:*:*:*:* |
| oracle | communications_unified_inventory_management | 7.4.2 | cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.2:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 16.0.6 | cpe:2.3:a:oracle:retail_xstore_point_of_service:16.0.6:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 17.0.4 | cpe:2.3:a:oracle:retail_xstore_point_of_service:17.0.4:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 18.0.3 | cpe:2.3:a:oracle:retail_xstore_point_of_service:18.0.3:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 19.0.2 | cpe:2.3:a:oracle:retail_xstore_point_of_service:19.0.2:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 20.0.1 | cpe:2.3:a:oracle:retail_xstore_point_of_service:20.0.1:*:*:*:*:*:*:* |
| oracle | utilities_framework | 4.2.0.2.0 | cpe:2.3:a:oracle:utilities_framework:4.2.0.2.0:*:*:*:*:*:*:* |
| oracle | utilities_framework | 4.2.0.3.0 | cpe:2.3:a:oracle:utilities_framework:4.2.0.3.0:*:*:*:*:*:*:* |
| oracle | utilities_framework | 4.3.0.1.0 | cpe:2.3:a:oracle:utilities_framework:4.3.0.1.0:*:*:*:*:*:*:* |
| oracle | utilities_framework | 4.3.0.6.0 | cpe:2.3:a:oracle:utilities_framework:4.3.0.6.0:*:*:*:*:*:*:* |
| oracle | utilities_framework | 4.4.0.0.0 | cpe:2.3:a:oracle:utilities_framework:4.4.0.0.0:*:*:*:*:*:*:* |
| oracle | utilities_framework | 4.4.0.2.0 | cpe:2.3:a:oracle:utilities_framework:4.4.0.2.0:*:*:*:*:*:*:* |
| oracle | utilities_framework | 4.4.0.3.0 | cpe:2.3:a:oracle:utilities_framework:4.4.0.3.0:*:*:*:*:*:*:* |
| oracle | utilities_testing_accelerator | 6.0.0.1.1 | cpe:2.3:a:oracle:utilities_testing_accelerator:6.0.0.1.1:*:*:*:*:*:*:* |
| oracle | webcenter_portal | 12.2.1.3.0 | cpe:2.3:a:oracle:webcenter_portal:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | webcenter_portal | 12.2.1.4.0 | cpe:2.3:a:oracle:webcenter_portal:12.2.1.4.0:*:*:*:*:*:*:* |