GHSA-f6hm-88x3-mfjv · Severity: medium · Ecosystem: maven — A Server-Side Forgery Request can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the local host
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to request data from internal resources that are not publicly available 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
Conclusion & alert: CVE-2021-21349 is rated High Exploit Risk (72.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.75%, 91th percentile). 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 | 5.91% | 6.75% | +0.83% |
| 2 | 2025-12-28 | 4.44% | 5.91% | +1.47% |
| 3 | 2025-12-27 | — | 4.44% | — |
Full EPSS history (46 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
1.6 | 4.0 | [email protected] |
| 8.6 | 3.1 | HIGH |
|
3.9 | 4.0 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-f6hm-88x3-mfjv · Severity: medium · Ecosystem: maven — A Server-Side Forgery Request can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the local host
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2021-21349 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-2021-21349 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-21349 |
suse
|
medium | CVE-2021-21349 severity moderate: SUSE including 245 source package names (5.0.0-beta1.2.122:xstream-1.4.16-3.8.1, 5.1.0.6.40:xstream-1.4.16-3.8.1, …), 278 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)): Known Affected 231, Fixed 47. | https://www.suse.com/security/cve/CVE-2021-21349/ |
ubuntu
|
medium | CVE-2021-21349 medium priority: Ubuntu including 1 source packages (libxstream-java), 14 status rows across 14 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial): released 13, needs-triage 1. | https://ubuntu.com/security/CVE-2021-21349 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| netapp | oncommand_insight | — | cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* |
| apache | activemq | < 5.15.14 | cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* |
| apache | activemq | 5.16.0 | cpe:2.3:a:apache:activemq:5.16.0:*:*:*:*:*:*:* |
| apache | activemq | 5.16.1 | cpe:2.3:a:apache:activemq:5.16.1:*:*:*:*:*:*:* |
| apache | jmeter | < 5.5 | cpe:2.3:a:apache:jmeter:*:*:*:*:*:*:*:* |
| xstream | xstream | < 1.4.16 | 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:*:*:*:*:*:*:* |
| oracle | banking_enterprise_default_management | 2.10.0 | cpe:2.3:a:oracle:banking_enterprise_default_management:2.10.0:*:*:*:*:*:*:* |
| oracle | banking_enterprise_default_management | 2.12.0 | cpe:2.3:a:oracle:banking_enterprise_default_management:2.12.0:*:*:*:*:*:*:* |
| oracle | banking_platform | 2.4.0 | cpe:2.3:a:oracle:banking_platform:2.4.0:*:*:*:*:*:*:* |
| oracle | banking_platform | 2.7.1 | cpe:2.3:a:oracle:banking_platform:2.7.1:*:*:*:*:*:*:* |
| oracle | banking_platform | 2.9.0 | cpe:2.3:a:oracle:banking_platform:2.9.0:*:*:*:*:*:*:* |
| oracle | banking_platform | 2.12.0 | cpe:2.3:a:oracle:banking_platform:2.12.0:*:*:*:*:*:*:* |
| oracle | banking_virtual_account_management | 14.2.0 | cpe:2.3:a:oracle:banking_virtual_account_management:14.2.0:*:*:*:*:*:*:* |
| oracle | banking_virtual_account_management | 14.3.0 | cpe:2.3:a:oracle:banking_virtual_account_management:14.3.0:*:*:*:*:*:*:* |
| oracle | banking_virtual_account_management | 14.5.0 | cpe:2.3:a:oracle:banking_virtual_account_management:14.5.0:*:*:*:*:*:*:* |
| oracle | business_activity_monitoring | 11.1.1.9.0 | cpe:2.3:a:oracle:business_activity_monitoring:11.1.1.9.0:*:*:*:*:*:*:* |
| oracle | business_activity_monitoring | 12.2.1.3.0 | cpe:2.3:a:oracle:business_activity_monitoring:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | business_activity_monitoring | 12.2.1.4.0 | cpe:2.3:a:oracle:business_activity_monitoring:12.2.1.4.0:*:*:*:*:*:*:* |
| oracle | communications_billing_and_revenue_management_elastic_charging_engine | 12.0.0.3.0 | cpe:2.3:a:oracle:communications_billing_and_revenue_management_elastic_charging_engine:12.0.0.3.0:*:*:*:*:*:*:* |
| oracle | communications_policy_management | 12.5.0 | cpe:2.3:a:oracle:communications_policy_management:12.5.0:*:*:*:*:*:*:* |
| oracle | communications_unified_inventory_management | 7.3.2 | cpe:2.3:a:oracle:communications_unified_inventory_management:7.3.2:*:*:*:*:*:*:* |
| 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 | graalvm | 20.3.4 | cpe:2.3:a:oracle:graalvm:20.3.4:*:*:*:enterprise:*:*:* |
| oracle | graalvm | 21.3.0 | cpe:2.3:a:oracle:graalvm:21.3.0:*:*:*:enterprise:*:*:* |
| oracle | java_se | 7u321 | cpe:2.3:a:oracle:java_se:7u321:*:*:*:*:*:*:* |
| oracle | java_se | 8u311 | cpe:2.3:a:oracle:java_se:8u311:*:*:*:*:*:*:* |
| 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 | webcenter_portal | 11.1.1.9.0 | cpe:2.3:a:oracle:webcenter_portal:11.1.1.9.0:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |