Remote Code Execution in XStream

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2020-26217
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-16 21:15:12 UTC
Updated2026-10-07 19:17:17 UTC
DescriptionXStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.850010000 probability, percentile 0.997100000 (date 2026-10-07)

Problem Types: CWE-78 | CWE-78 CWE-78 OS Command Injection

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary8HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
3.1CNADECLARED8HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
2.0[email protected]Primary9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Activemq All All All All
Application Apache Activemq 5.16.0 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Netapp Snapmanager All All All All
Application Netapp Snapmanager - - All All
Application Oracle Banking Cash Management 14.2 All All All
Application Oracle Banking Cash Management 14.3 All All All
Application Oracle Banking Cash Management 14.5 All All All
Application Oracle Banking Corporate Lending Process Management 14.2 All All All
Application Oracle Banking Corporate Lending Process Management 14.3 All All All
Application Oracle Banking Corporate Lending Process Management 14.5 All All All
Application Oracle Banking Credit Facilities Process Management 14.2 All All All
Application Oracle Banking Credit Facilities Process Management 14.3 All All All
Application Oracle Banking Credit Facilities Process Management 14.5 All All All
Application Oracle Banking Platform 2.4.0 All All All
Application Oracle Banking Platform 2.7.1 All All All
Application Oracle Banking Platform 2.9.0 All All All
Application Oracle Banking Supply Chain Finance 14.2 All All All
Application Oracle Banking Supply Chain Finance 14.3 All All All
Application Oracle Banking Supply Chain Finance 14.5 All All All
Application Oracle Banking Trade Finance Process Management 14.2 All All All
Application Oracle Banking Trade Finance Process Management 14.3 All All All
Application Oracle Banking Trade Finance Process Management 14.5 All All All
Application Oracle Banking Virtual Account Management 14.2.0 All All All
Application Oracle Banking Virtual Account Management 14.3.0 All All All
Application Oracle Banking Virtual Account Management 14.5.0 All All All
Application Oracle Business Activity Monitoring 11.1.1.9.0 All All All
Application Oracle Business Activity Monitoring 12.2.1.3.0 All All All
Application Oracle Business Activity Monitoring 12.2.1.4.0 All All All
Application Oracle Communications Policy Management 12.5.0 All All All
Application Oracle Endeca Information Discovery Studio 3.2.0.0 All All All
Application Oracle Retail Xstore Point Of Service 16.0.6 All All All
Application Oracle Retail Xstore Point Of Service 17.0.4 All All All
Application Oracle Retail Xstore Point Of Service 18.0.3 All All All
Application Oracle Retail Xstore Point Of Service 19.0.2 All All All
Application Xstream Xstream All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA X-stream Xstream affected < 1.4.14 Not specified

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2471-1] libxstream-java security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
Oracle Critical Patch Update Advisory - April 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Not Applicable, Third Party Advisory
Oracle Critical Patch Update Advisory - October 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
Oracle Critical Patch Update Advisory - July 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
Pony Mail! af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Issue Tracking, Mailing List
Pony Mail! af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Issue Tracking, Mailing List
XStream - CVE-2020-26217 af854a3a-2127-422b-91ae-364da2661108 x-stream.github.io Exploit, Mitigation, Vendor Advisory
XStream can be used for Remote Code Execution · Advisory · x-stream/xstream · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Mitigation, Third Party Advisory
Oracle Critical Patch Update Advisory - January 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Not Applicable, Third Party Advisory
Oracle Critical Patch Update Advisory - April 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
lists.apache.org/thread.html/r7c9fc255edc0b9cd9567093d131f6d33fde4c662aaf91246... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Issue Tracking, Mailing List
Pony Mail! af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Issue Tracking, Mailing List
Fix for CVE-2017-9805. · x-stream/xstream@0fec095 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
CVE-2020-26217 XStream Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
Debian -- Security Information -- DSA-4811-1 libxstream-java af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 174824 SUSE Enterprise Linux Security update for SUSE Manager Server 4.1 (SUSE-SU-2021:0906-1)
  • 198361 Ubuntu Security Notification for XStream vulnerabilities (USN-4943-1)
  • 375337 IBM Spectrum Control Multiple Vulnerability(6415993)
  • 375827 XStream Arbitrary Code Execution And Multiple vulnerabilities
  • 730155 McAfee Web Gateway Multiple Vulnerabilities(WP-3580, WP-3656, WP-3815, WP-3878, WP-3882, WP-3934,WP-3935, WP-3936, WP-3999)
  • 750401 OpenSUSE Security Update for xstream (openSUSE-SU-2021:0140-1)
  • 980327 Java (maven) Security Update for com.thoughtworks.xstream:xstream (GHSA-mw36-7c6c-q4q2)

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report