{"id":"CVE-2017-1000353","published":"2018-01-29T17:29:00Z","modified":"2026-06-17T00:59:00Z","title":"Jenkins Remote Code Execution Vulnerability","vendor":"Jenkins","product":"Jenkins","tier":"core","eol":null,"description":{"text":"Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution. An unauthenticated remote code execution vulnerability allowed attackers to transfer a serialized Java `SignedObject` object to the Jenkins CLI, that would be deserialized using a new `ObjectInputStream`, bypassing the existing blacklist-based protection mechanism. We're fixing this issue by adding `SignedObject` to the blacklist. We're also backporting the new HTTP CLI protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the remoting-based (i.e. Java serialization) CLI protocol, disabling it by default.","provenance":"source","from":"NVD"},"summary":{"text":"The Jenkins CLI component in Jenkins versions 2.56 and earlier, and 2.46.1 LTS and earlier, contains a deserialization flaw that lets a serialized Java SignedObject bypass the blacklist-based protection in the CLI's deserialization logic. An unauthenticated attacker with network access to the Jenkins CLI can exploit this to achieve remote code execution, with no credentials or user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:09:42Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.99679,"percentile":0.9995,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2025-10-02","dueDate":"2025-10-23","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://www.jenkins.io/security/advisory/2017-04-26/ ; https://nvd.nist.gov/vuln/detail/CVE-2017-1000353","provenance":"source"},"vulncheckKev":{"dateAdded":"2018-07-07","exploitedFirstSeen":"2018-07-07","ransomware":false,"evidence":[{"url":"https://www.f5.com/labs/articles/threat-intelligence/new-jenkins-campaign-hides-malware--kills-competing-crypto-miner","date":"2018-07-07"},{"url":"https://blog.talosintelligence.com/2018/12/cryptomining-campaigns-2018.html","date":"2018-12-18"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-10-02"},{"url":"https://cyble.com/resources/research-reports/global-cybersecurity-report/","date":"2025-12-11"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"}],"evidenceTotal":5,"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-502","name":"Deserialization of Untrusted Data"}],"references":[{"url":"http://packetstormsecurity.com/files/159266/Jenkins-2.56-CLI-Deserialization-Code-Execution.html","tags":["Permissions Required","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/98056","tags":["Broken Link"]},{"url":"https://jenkins.io/security/advisory/2017-04-26/","tags":["Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/41965/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["Patch","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/159266/Jenkins-2.56-CLI-Deserialization-Code-Execution.html","tags":["Permissions Required","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/98056","tags":["Broken Link"]},{"url":"https://jenkins.io/security/advisory/2017-04-26/","tags":["Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/41965/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["Patch","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-1000353","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated remote attack via exposed CLI","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"unauthenticated remote code execution vulnerability allowed attackers","start":131,"end":200}],"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: Deserialization yields arbitrary code execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allowed attackers to transfer a serialized Java `SignedObject`","start":183,"end":245}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[{"ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","vulnerableRanges":[">=2.50, <2.57","<2.46.2"],"patched":["2.57","2.46.2"],"from":["GHSA-26wc-3wqp-g3rp"],"provenance":"source"}],"advisories":[{"id":"GHSA-26wc-3wqp-g3rp","url":"https://github.com/advisories/GHSA-26wc-3wqp-g3rp","severity":"CRITICAL","ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","vulnerableRanges":[">=2.50, <2.57"],"patched":["2.57"],"provenance":"source","from":"GHSA"},{"id":"GHSA-26wc-3wqp-g3rp","url":"https://github.com/advisories/GHSA-26wc-3wqp-g3rp","severity":"CRITICAL","ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","vulnerableRanges":["<2.46.2"],"patched":["2.46.2"],"provenance":"source","from":"GHSA"}],"euvd":{"id":"EUVD-2022-1921","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-1921","exploited":true,"exploitedSince":"2025-10-02","provenance":"source"},"exploits":[{"id":41965,"url":"https://www.exploit-db.com/exploits/41965","title":"CloudBees Jenkins 2.32.1 - Java Deserialization","type":"dos","platform":"java","date":"2017-05-05","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2017-05-05"},"pocGithub":{"count":2,"skipped":0,"earliest":"2019-04-12","earliestUrl":"https://github.com/vulhub/CVE-2017-1000353","repos":[{"name":"vulhub/CVE-2017-1000353","url":"https://github.com/vulhub/CVE-2017-1000353","stars":57,"created":"2019-04-12"},{"name":"r00t4dm/Jenkins-CVE-2017-1000353","url":"https://github.com/r00t4dm/Jenkins-CVE-2017-1000353","stars":3,"created":"2022-10-12"}]},"metasploit":[{"name":"Jenkins CLI Deserialization","module":"exploit/linux/http/jenkins_cli_deserialization","type":"exploit","disclosureDate":"2017-04-26","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/jenkins_cli_deserialization.rb"}],"first":{"date":"2017-04-26","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/jenkins_cli_deserialization.rb"},"provenance":"source"},"exploitRefs":["https://www.exploit-db.com/exploits/41965/","http://packetstormsecurity.com/files/159266/Jenkins-2.56-CLI-Deserialization-Code-Execution.html","https://www.exploit-db.com/exploits/41965"],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2017-04-26","kind":"exploit-public","label":"First public exploit: Metasploit; later: Exploit-DB 2017-05-05, PoC-in-GitHub 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exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-1921","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":"Metasploit","daysToKev":2803},"priority":{"score":69.9,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 3036 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.99,"detail":"percentile 0.9995"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit; 1 Exploit-DB entry; 1 NVD exploit link; 1 advisory exploit reference; 2 PoC-in-GitHub repos; 1 Metasploit module"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}