{"id":"CVE-2020-10199","published":"2020-04-01T19:15:14Z","modified":"2026-06-17T02:47:28Z","title":"Sonatype Nexus Repository Remote Code Execution Vulnerability","vendor":"Sonatype","product":"Nexus Repository","tier":"core","eol":null,"description":{"text":"Sonatype Nexus Repository before 3.21.2 allows JavaEL Injection (issue 1 of 2).","provenance":"source","from":"NVD"},"summary":{"text":"Sonatype Nexus Repository, before version 3.21.2, contains a JavaEL injection flaw, classified as improper neutralization of special elements in an expression language statement. An attacker with network access and low-privileged authentication, requiring no user interaction, could exploit this flaw to execute arbitrary code on the affected system.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T04:54:08Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.99064,"percentile":0.99932,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-10199","provenance":"source"},"vulncheckKev":{"dateAdded":"2021-11-03","exploitedFirstSeen":"2021-11-03","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2021-11-03"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-14&host_type=src&vulnerability=cve-2020-10199","date":"2023-11-14"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-17&host_type=src&vulnerability=cve-2020-10199","date":"2023-11-17"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-12&host_type=src&vulnerability=cve-2020-10199","date":"2023-12-12"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-06&host_type=src&vulnerability=cve-2020-10199","date":"2024-01-06"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-22&host_type=src&vulnerability=cve-2020-10199","date":"2024-01-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-23&host_type=src&vulnerability=cve-2020-10199","date":"2024-01-23"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-24&host_type=src&vulnerability=cve-2020-10199","date":"2024-01-24"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-27&host_type=src&vulnerability=cve-2020-10199","date":"2024-01-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-28&host_type=src&vulnerability=cve-2020-10199","date":"2024-01-28"}],"evidenceTotal":275,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-917","name":"Improper Neutralization of Special Elements used in an Expression Language Statement"}],"references":[{"url":"http://packetstormsecurity.com/files/157261/Nexus-Repository-Manager-3.21.1-01-Remote-Code-Execution.html","tags":["Patch","Third Party Advisory","VDB Entry"]},{"url":"http://packetstormsecurity.com/files/160835/Sonatype-Nexus-3.21.1-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://cwe.mitre.org/data/definitions/917.html","tags":["Third Party 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public-facing repository","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allows JavaEL Injection (issue 1 of 2)","start":40,"end":78}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Expression injection enables arbitrary code execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows JavaEL Injection (issue 1 of 2)","start":40,"end":78}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[{"ecosystem":"Maven","package":"org.sonatype.nexus:nexus-extdirect","vulnerableRanges":["<3.21.2"],"patched":["3.21.2"],"from":["GHSA-g2f6-v5qh-h2mq"],"provenance":"source"}],"advisories":[{"id":"GHSA-g2f6-v5qh-h2mq","url":"https://github.com/advisories/GHSA-g2f6-v5qh-h2mq","severity":"HIGH","ecosystem":"Maven","package":"org.sonatype.nexus:nexus-extdirect","vulnerableRanges":["<3.21.2"],"patched":["3.21.2"],"provenance":"source","from":"GHSA"}],"euvd":{"id":"EUVD-2020-0379","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-0379","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[{"id":48343,"url":"https://www.exploit-db.com/exploits/48343","title":"Nexus Repository Manager - Java EL Injection RCE (Metasploit)","type":"remote","platform":"linux","date":"2020-04-17","verified":true,"provenance":"source"},{"id":49385,"url":"https://www.exploit-db.com/exploits/49385","title":"Sonatype Nexus 3.21.1 - Remote Code Execution (Authenticated)","type":"webapps","platform":"java","date":"2021-01-06","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":2,"earliest":"2020-04-17"},"pocGithub":{"count":6,"skipped":1,"earliest":"2020-04-07","earliestUrl":"https://github.com/wsfengfan/CVE-2020-10199-10204","repos":[{"name":"zhzyker/CVE-2020-10199_POC-EXP","url":"https://github.com/zhzyker/CVE-2020-10199_POC-EXP","stars":43,"created":"2020-04-16"},{"name":"jas502n/CVE-2020-10199","url":"https://github.com/jas502n/CVE-2020-10199","stars":35,"created":"2020-04-08"},{"name":"aleenzz/CVE-2020-10199","url":"https://github.com/aleenzz/CVE-2020-10199","stars":31,"created":"2020-05-15"},{"name":"magicming200/CVE-2020-10199_CVE-2020-10204","url":"https://github.com/magicming200/CVE-2020-10199_CVE-2020-10204","stars":25,"created":"2020-04-08"},{"name":"wsfengfan/CVE-2020-10199-10204","url":"https://github.com/wsfengfan/CVE-2020-10199-10204","stars":19,"created":"2020-04-07"}]},"metasploit":[{"name":"Nexus Repository Manager Java EL Injection RCE","module":"exploit/linux/http/nexus_repo_manager_el_injection","type":"exploit","disclosureDate":"2020-03-31","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/nexus_repo_manager_el_injection.rb"}],"nuclei":[{"id":"CVE-2020-10199","name":"Sonatype Nexus Repository Manager 3 - Remote Code 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