{"id":"CVE-2026-66384","published":"2026-08-12T16:17:14Z","modified":"2026-10-24T16:10:00Z","title":"JFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory Vulnerability","vendor":"JFrog","product":"Artifactory","tier":"core","eol":null,"description":{"text":"An authenticated user may write data outside the intended Docker cache path under specific remote-repository conditions.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is an improper limitation of a pathname to a restricted directory in JFrog Artifactory, where the Docker cache path handling for certain remote repositories fails to keep writes confined to the intended location. An attacker with valid low-privilege credentials and network access to the server can write data outside the Docker cache directory, and exploitation is conditional on a specific remote-repository configuration and requires the attack complexity to be high.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T05:10:35Z"},"cvss":{"score":5.3,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.00665,"percentile":0.51756,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-08-27","dueDate":"2026-09-10","ransomware":false,"requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"https://docs.jfrog.com/releases/docs/jfrog-security-advisories ; https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-66384","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-08-27","exploitedFirstSeen":"2026-08-27","ransomware":false,"evidence":[{"url":"https://euvd.enisa.europa.eu/enisa/EUVD-2026-57256","date":"2026-08-27"},{"url":"https://previdian.com/CVE-2026-66384","date":"2026-08-27"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-08-27"},{"url":"https://decipher.sc/2026/09/01/critical-artifactory-bug-under-attack/","date":"2026-09-01"},{"url":"https://www.recordedfuture.com/blog/august-2026-cve-landscape","date":"2026-09-08"}],"evidenceTotal":5,"provenance":"source"},"exploited":true,"otx":{"pulseCount":33,"pulses":[{"name":"Actively_Exploited_Kev | Oct 31, 2026","url":"https://otx.alienvault.com/pulse/6ae4aefab0c2191cecd41862","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"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":"JFrog Artifactory Auth Bypass Chain Exploited in the Wild","url":"https://otx.alienvault.com/pulse/6ad8d5546a2cca9babcbb0e8","created":"2026-10-21"},{"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"}],"provenance":"machine"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"references":[{"url":"https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases","tags":["Release Notes","Vendor Advisory"]},{"url":"https://docs.jfrog.com/releases/docs/jfrog-security-advisories","tags":["Vendor Advisory"]},{"url":"https://cdn.openai.com/pdf/67869394-cb91-4c12-888c-5cbd85c7814c/OpenAI-Hugging-Face%20Incident-Technical-Report.pdf","tags":["Technical Description"]},{"url":"https://openai.com/index/hugging-face-incident-and-the-road-ahead/","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-66384","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: Authenticated user exploits Artifactory's exposed service directly","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"An authenticated user may write data outside the intended Docker cache path","start":0,"end":75}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1565","name":"Data Manipulation","tactics":["impact"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Attacker writes arbitrary data to unintended locations, altering stored data","mappingType":"primary_impact","evidence":[{"from":"description","quote":"may write data outside the intended Docker cache path","start":22,"end":75}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-57256","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-57256","exploited":true,"exploitedSince":"2026-08-27","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2026-08-28","earliestUrl":"https://github.com/HORKimhab/CVE-2026-66384","repos":[{"name":"HORKimhab/CVE-2026-66384","url":"https://github.com/HORKimhab/CVE-2026-66384","stars":0,"created":"2026-08-28"}]},"first":{"date":"2026-08-28","source":"PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-66384"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1565"],"provenance":"ai"}],"timeline":[{"date":"2026-08-12","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66384","provenance":"source"},{"date":"2026-08-27","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://euvd.enisa.europa.eu/enisa/EUVD-2026-57256","provenance":"source"},{"date":"2026-08-27","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-08-27","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-57256","provenance":"source"},{"date":"2026-08-28","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-66384","provenance":"source"}],"speed":{"daysToPublicExploit":16,"firstExploitFrom":"PoC-in-GitHub","daysToKev":15},"priority":{"score":67.1,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":10.0,"detail":"added 65 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":10.35,"detail":"percentile 0.5176"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"33 pulses"},{"name":"CVSS severity","points":3.71,"detail":"base score 5.3"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}