{"cve":"CVE-2020-26217","nvd":{"published":"2020-11-16T21:15:12.893","modified":"2026-10-07T19:17:17.070","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-78"],"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"],"products":["apache:activemq","debian:debian_linux","netapp:snapmanager","oracle:banking_cash_management","oracle:banking_corporate_lending_process_management","oracle:banking_credit_facilities_process_management","oracle:banking_platform","oracle:banking_supply_chain_finance","oracle:banking_trade_finance_process_management","oracle:banking_virtual_account_management","oracle:business_activity_monitoring","oracle:communications_policy_management","oracle:endeca_information_discovery_studio","oracle:retail_xstore_point_of_service","xstream:xstream"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-26217","score":0.82717,"percentile":0.99665,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-mw36-7c6c-q4q2","url":"https://osv.dev/vulnerability/GHSA-mw36-7c6c-q4q2","summary":"XStream can be used for Remote Code Execution","modified":"2026-07-08T05:59:56.422006310Z","packages":[{"ecosystem":"Maven","name":"com.thoughtworks.xstream:xstream","purl":"pkg:maven/com.thoughtworks.xstream/xstream","ranges":["<1.4.14-java7"],"fixed":["1.4.14-java7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}