GHSA-7chv-rrw6-w6fc · Severity: high · Ecosystem: maven — XStream is vulnerable to a Remote Command Execution attack
XStream is software for serializing Java objects to XML and back again. A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types is affected. The vulnerability is patched in version 1.4.17.
Conclusion & alert: CVE-2021-29505 is rated Moderate Risk (64.4/100): CVSS High severity, with high exploitation likelihood (EPSS 90.35%, 100th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-05-11 | 90.77% | 90.35% | -0.42% |
| 2 | 2026-01-13 | 90.35% | 90.77% | +0.42% |
| 3 | 2025-11-30 | — | 90.35% | — |
Full EPSS history (37 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
1.6 | 5.9 | [email protected] |
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.5 | 2.0 | MEDIUM |
|
8.0 | 6.4 | [email protected] |
GHSA-7chv-rrw6-w6fc · Severity: high · Ecosystem: maven — XStream is vulnerable to a Remote Command Execution attack
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2021-29505 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-2021-29505 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2021-29505 |
suse
|
high | CVE-2021-29505 severity important: SUSE including 247 source package names (5.0.0-beta1.2.122:xstream-1.4.17-3.11.2, 5.1.0.6.40:xstream-1.4.17-3.11.2, …), 280 product×package rows across 32 product lines (Container suse/manager/5.0/x86_64/server, Container suse/multi-linux-manager/5.1/x86_64/server, … (32 product lines)): Known Affected 231, Fixed 49. | https://www.suse.com/security/cve/CVE-2021-29505/ |
ubuntu
|
medium | CVE-2021-29505 medium priority: Ubuntu including 1 source packages (libxstream-java), 16 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 8, ignored 3, needed 3, needs-triage 2. | https://ubuntu.com/security/CVE-2021-29505 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xstream | xstream | < 1.4.17 | 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 | banking_cash_management | 14.2 | cpe:2.3:a:oracle:banking_cash_management:14.2:*:*:*:*:*:*:* |
| oracle | banking_cash_management | 14.3 | cpe:2.3:a:oracle:banking_cash_management:14.3:*:*:*:*:*:*:* |
| oracle | banking_cash_management | 14.5 | cpe:2.3:a:oracle:banking_cash_management:14.5:*:*:*:*:*:*:* |
| oracle | banking_corporate_lending_process_management | 14.2.0 | cpe:2.3:a:oracle:banking_corporate_lending_process_management:14.2.0:*:*:*:*:*:*:* |
| oracle | banking_corporate_lending_process_management | 14.3.0 | cpe:2.3:a:oracle:banking_corporate_lending_process_management:14.3.0:*:*:*:*:*:*:* |
| oracle | banking_corporate_lending_process_management | 14.5.0 | cpe:2.3:a:oracle:banking_corporate_lending_process_management:14.5.0:*:*:*:*:*:*:* |
| oracle | banking_credit_facilities_process_management | 14.2.0 | cpe:2.3:a:oracle:banking_credit_facilities_process_management:14.2.0:*:*:*:*:*:*:* |
| oracle | banking_credit_facilities_process_management | 14.3.0 | cpe:2.3:a:oracle:banking_credit_facilities_process_management:14.3.0:*:*:*:*:*:*:* |
| oracle | banking_credit_facilities_process_management | 14.5.0 | cpe:2.3:a:oracle:banking_credit_facilities_process_management:14.5.0:*:*:*:*:*:*:* |
| oracle | banking_supply_chain_finance | 14.2.0 | cpe:2.3:a:oracle:banking_supply_chain_finance:14.2.0:*:*:*:*:*:*:* |
| oracle | banking_trade_finance_process_management | 14.5.0 | cpe:2.3:a:oracle:banking_trade_finance_process_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_brm_-_elastic_charging_engine | 11.3 | cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:11.3:*:*:*:*:*:*:* |
| oracle | communications_brm_-_elastic_charging_engine | 12.0 | cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0:*:*:*:*:*:*:* |
| 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 | enterprise_manager_ops_center | 12.4.0.0 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* |
| oracle | retail_customer_insights | 15.0.2 | cpe:2.3:a:oracle:retail_customer_insights:15.0.2:*:*:*:*:*:*:* |
| oracle | retail_customer_insights | 16.0.2 | cpe:2.3:a:oracle:retail_customer_insights:16.0.2:*:*:*:*:*:*:* |
| 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 | 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:*:*:*:*:*:*:* |
| oracle | webcenter_sites | 12.2.1.3.0 | cpe:2.3:a:oracle:webcenter_sites:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | webcenter_sites | 12.2.1.4.0 | cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:* |