{"answers":{"affected":"2 open source packages ship an affected version, including com.thoughtworks.xstream:xstream. It affects 15 products.","exploited":"Yes. Attackers have exploited CVE-2021-39144 in the wild since at least 10 Mar 2023.","fix":"Upgrade com.thoughtworks.xstream:xstream to 1.4.18 or later. US federal agencies must fix it by 31 Mar 2023.","what":"CVE-2021-39144 is a high-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 23 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-39144 and fix it if it is affected.\n\nWhat it is: CVE-2021-39144 is a high-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 23 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2021-39144 in the wild since at least 10 Mar 2023.\n\nAffected packages and fixed versions:\n- com.thoughtworks.xstream:xstream (Maven): affected all versions; fixed in 1.4.18\n- com.thoughtworks.xstream:xstream (Maven): affected all versions; fixed in 1.4.18\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-39144/ (Markdown: https://insights.sbomify.com/CVE-2021-39144/index.md)","id":"CVE-2021-39144","markdown":"https://insights.sbomify.com/CVE-2021-39144/index.md","name":"CVE-2021-39144","record":{"aliases":["DEBIAN-CVE-2021-39144","GHSA-j9h8-phrw-h4fh","UBUNTU-CVE-2021-39144"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Java XML serialization library","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary host commands via manipulated XML input if XStream's security whitelist is not configured.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"snapmanager","vendor":"netapp"},{"product":"business_activity_monitoring","vendor":"oracle"},{"product":"commerce_guided_search","vendor":"oracle"},{"product":"communications_billing_and_revenue_management_elastic_charging_engine","vendor":"oracle"},{"product":"communications_cloud_native_core_automated_test_suite","vendor":"oracle"},{"product":"communications_cloud_native_core_binding_support_function","vendor":"oracle"},{"product":"communications_cloud_native_core_policy","vendor":"oracle"},{"product":"communications_unified_inventory_management","vendor":"oracle"},{"product":"retail_xstore_point_of_service","vendor":"oracle"},{"product":"utilities_framework","vendor":"oracle"},{"product":"utilities_testing_accelerator","vendor":"oracle"},{"product":"webcenter_portal","vendor":"oracle"},{"product":"xstream","vendor":"xstream"}],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"},{"id":"CWE-94","name":"Improper Control of Generation of Code"},{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"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.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2022-10-25","github_poc":0,"max_poc_stars":null,"metasploit":1,"nuclei":1,"refs":[{"date":"2022-10-25","kind":"metasploit","ref":"exploit/linux/http/vmware_nsxmgr_xstream_rce_cve_2021_39144","stars":null,"title":"VMware NSX Manager XStream unauthenticated RCE"},{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-39144.yaml","stars":null,"title":"XStream 1.4.18 - Remote Code Execution"}],"tier":"exploited"},"has_fix":true,"headline":"XStream Remote Code Execution","id":"CVE-2021-39144","indexable":true,"kev":{"dateAdded":"2023-03-10","dueDate":"2023-03-31","knownRansomwareCampaignUse":"Unknown","product":"XStream","requiredAction":"Apply updates per vendor instructions.","vendorProject":"XStream","vulnerabilityName":"XStream Remote Code Execution Vulnerability"},"kind":"cve","links":{"ecosystem":"Maven","product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","netapp:snapmanager","oracle:commerce_guided_search","oracle:communications_cloud_native_core_automated_test_suite","oracle:communications_cloud_native_core_binding_support_function","oracle:communications_cloud_native_core_policy","oracle:communications_unified_inventory_management","oracle:retail_xstore_point_of_service","oracle:webcenter_portal"],"type":"deserialization","year":"2021"},"n_packages":2,"n_references":12,"next":{"headline":"XStream is vulnerable to an Arbitrary Code Execution attack","id":"CVE-2021-39145"},"packages":[{"ecosystem":"Maven","fixed":["1.4.18"],"introduced":["0"],"last_affected":[],"package":"com.thoughtworks.xstream:xstream","purl":null,"source":"GHSA-j9h8-phrw-h4fh"},{"ecosystem":"Maven","fixed":["1.4.18"],"introduced":["0"],"last_affected":[],"package":"com.thoughtworks.xstream:xstream","purl":"pkg:maven/com.thoughtworks.xstream/xstream","source":"GHSA-j9h8-phrw-h4fh"}],"prev":{"headline":"Path Traversal in spinnaker","id":"CVE-2021-39143"},"products":["xstream"],"published":"2021-08-23","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["x-stream"]},"summary":"Remote attackers can execute arbitrary host commands via manipulated XML input if XStream's security whitelist is not configured.","url":"https://insights.sbomify.com/CVE-2021-39144/"}