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    CVE-2020-26217

    XStream 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.

    Published:Nov 16, 2020
    Last Modified:May 23, 2025
    EPS:Nov 16, 2020
    EPSS Score:0.93566
    CVSS Score:8

    Affected Products

    Vendor
    Apache
    Product
    Activemq
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Netapp
    Product
    Snapmanager
    Vendor
    Oracle
    Product
    Banking Cash Management
    Vendor
    Oracle
    Product
    Banking Corporate Lending Process Management
    Vendor
    Oracle
    Product
    Banking Credit Facilities Process Management
    Vendor
    Oracle
    Product
    Banking Platform
    Vendor
    Oracle
    Product
    Banking Supply Chain Finance
    Vendor
    Oracle
    Product
    Banking Trade Finance Process Management
    Vendor
    Oracle
    Product
    Banking Virtual Account Management
    Vendor
    Oracle
    Product
    Business Activity Monitoring
    Vendor
    Oracle
    Product
    Communications Policy Management
    Vendor
    Oracle
    Product
    Endeca Information Discovery Studio
    Vendor
    Oracle
    Product
    Retail Xstore Point Of Service
    Vendor
    Redhat
    Product
    Camel Quarkus
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Integration
    Vendor
    Redhat
    Product
    Jboss Amq
    Vendor
    Redhat
    Product
    Jboss Data Grid
    Vendor
    Redhat
    Product
    Jboss Enterprise Bpms Platform
    Vendor
    Redhat
    Product
    Jboss Enterprise Brms Platform
    Vendor
    Redhat
    Product
    Jboss Fuse
    Vendor
    Xstream
    Product
    Xstream

    Exploits

    https://x-stream.github.io/CVE-2020-26217.htmlhttps://x-stream.github.io/CVE-2020-26217.htmlhttps://github.com/Al1ex/CVE-2020-26217https://github.com/cuijiung/xstream-CVE-2020-26217https://github.com/dawetmaster/CVE-2020-26217-xstream-vulnerablehttps://github.com/epicosy/XStream-1https://github.com/Kairo-one/CVE-2020-26217-XStreamhttps://github.com/novysodope/CVE-2020-26217-XStream-RCE-POChttps://github.com/shoucheng3/x-stream__xstream_CVE-2020-26217_1-4-14-java7https://github.com/shoucheng3/x-stream__xstream_CVE-2020-26217_1-4-14-java77

    Related CVEs

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    CVE-2026-61487 (CVSS 6.5) — Improper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An aut…
    CVE-2026-49434 (CVSS 7.5) — Improper Input Validation vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. An a…
    CVE-2026-49432 (CVSS 7.5) — Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A rem…
    CVE-2026-49877 (CVSS 8.1) — Improper Authorization vulnerability in Apache ActiveMQ. An authenticated low-privilege Web Console user by d…
    CVE-2026-50734 (CVSS 7.5) — Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache A…
    CVE-2026-50750 (CVSS 7.5) — Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ …
    CVE-2026-52760 (CVSS 6.1) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache A…
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    References

    https://github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a
    https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2
    https://lists.apache.org/thread.html/r2de526726e7f4db4a7cb91b7355070779f51a84fd985c6529c2f4e9e%40%3Cissues.activemq.apache.org%3E
    https://lists.apache.org/thread.html/r7c9fc255edc0b9cd9567093d131f6d33fde4c662aaf912460ef630e9%40%3Ccommits.camel.apache.org%3E
    https://lists.apache.org/thread.html/r826a006fda71cc96fc87b6eca4b5d195f19a292ad36cea501682c38c%40%3Cissues.activemq.apache.org%3E
    https://lists.apache.org/thread.html/redde3609b89b2a4ff18b536a06ef9a77deb93d47fda8ed28086fa8c3%40%3Cissues.activemq.apache.org%3E
    https://lists.debian.org/debian-lts-announce/2020/12/msg00001.html
    https://security.netapp.com/advisory/ntap-20210409-0004/
    https://www.debian.org/security/2020/dsa-4811
    https://www.oracle.com//security-alerts/cpujul2021.html
    https://www.oracle.com/security-alerts/cpuApr2021.html
    https://www.oracle.com/security-alerts/cpuapr2022.html
    https://www.oracle.com/security-alerts/cpujan2022.html
    https://www.oracle.com/security-alerts/cpuoct2021.html
    https://x-stream.github.io/CVE-2020-26217.html
    https://github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a
    https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2
    https://lists.apache.org/thread.html/r2de526726e7f4db4a7cb91b7355070779f51a84fd985c6529c2f4e9e%40%3Cissues.activemq.apache.org%3E
    https://lists.apache.org/thread.html/r7c9fc255edc0b9cd9567093d131f6d33fde4c662aaf912460ef630e9%40%3Ccommits.camel.apache.org%3E
    https://lists.apache.org/thread.html/r826a006fda71cc96fc87b6eca4b5d195f19a292ad36cea501682c38c%40%3Cissues.activemq.apache.org%3E
    https://lists.apache.org/thread.html/redde3609b89b2a4ff18b536a06ef9a77deb93d47fda8ed28086fa8c3%40%3Cissues.activemq.apache.org%3E
    https://lists.debian.org/debian-lts-announce/2020/12/msg00001.html
    https://security.netapp.com/advisory/ntap-20210409-0004/
    https://www.debian.org/security/2020/dsa-4811
    https://www.oracle.com//security-alerts/cpujul2021.html
    https://www.oracle.com/security-alerts/cpuApr2021.html
    https://www.oracle.com/security-alerts/cpuapr2022.html
    https://www.oracle.com/security-alerts/cpujan2022.html
    https://www.oracle.com/security-alerts/cpuoct2021.html
    https://x-stream.github.io/CVE-2020-26217.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High