CVE-2021-39144XStream is vulnerable to a Remote Command Execution attack
Updated under an hour ago ()
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It affects x-stream xstream and 15 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 10, 2023; federal agencies had to remediate by Mar 31, 2023. Treat that date as your deadline.
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XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host 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.
- CVSS
- 8.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-94, CWE-502
- Known exploited
- Added to CISA KEV Mar 10, 2023; federal remediation due Mar 31, 2023Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 98.12% (percentile 100)
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
x-stream xstream x_stream:xstream (from the name) | before 1.4.18 | CNA record |
xstream xstream xstream:xstream | before 1.4.18 | NVD |
debian debian_linux debian:debian_linux | 9.0; 10.0; 11.0 | NVD |
fedoraproject fedora fedoraproject:fedora | 33; 34; 35 | NVD |
netapp snapmanager netapp:snapmanager | all versions; all versions | NVD |
oracle business_activity_monitoring oracle:business_activity_monitoring | 12.2.1.4.0 | NVD |
oracle commerce_guided_search oracle:commerce_guided_search | 11.3.2 | NVD |
oracle communications_billing_and_revenue_management_elastic_charging_engine oracle:communications_billing_and_revenue_management_elastic_charging_engine | 11.3; 12.0 | NVD |
oracle communications_cloud_native_core_automated_test_suite oracle:communications_cloud_native_core_automated_test_suite | 1.9.0 | NVD |
oracle communications_cloud_native_core_binding_support_function oracle:communications_cloud_native_core_binding_support_function | 1.10.0 | NVD |
oracle communications_cloud_native_core_policy oracle:communications_cloud_native_core_policy | 1.14.0 | NVD |
oracle communications_unified_inventory_management oracle:communications_unified_inventory_management | 7.3.4; 7.3.5; 7.4.0; 7.4.1; 7.4.2 | NVD |
oracle retail_xstore_point_of_service oracle:retail_xstore_point_of_service | 16.0.6; 17.0.4; 18.0.3; 19.0.2; 20.0.1 | NVD |
oracle utilities_framework oracle:utilities_framework | 4.2.0.2.0; 4.2.0.3.0; 4.3.0.1.0; 4.3.0.6.0; 4.4.0.0.0; 4.4.0.2.0; 4.4.0.3.0 | NVD |
oracle utilities_testing_accelerator oracle:utilities_testing_accelerator | 6.0.0.1.1 | NVD |
oracle webcenter_portal oracle:webcenter_portal | 12.2.1.3.0; 12.2.1.4.0 | NVD |
References
- https://github.com/x-stream/xstream/security/advisories/GHSA-j9h8-phrw-h4fhvendor-advisory
- https://x-stream.github.io/CVE-2021-39144.htmlexploit, vendor-advisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00017.htmlmailing-list, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/vendor-advisory, broken-link, mailing-list, release-notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/vendor-advisory, broken-link, mailing-list, release-notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/vendor-advisory, broken-link, mailing-list, release-notes
- https://www.debian.org/security/2021/dsa-5004vendor-advisory, third-party-advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlpatch, third-party-advisory
- https://security.netapp.com/advisory/ntap-20210923-0003/third-party-advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlpatch, third-party-advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlpatch, third-party-advisory
- http://packetstormsecurity.com/files/169859/VMware-NSX-Manager-XStream-Unauthenticated-Remote-Code-Execution.htmlexploit, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-39144us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.