{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-104102","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-01T18:05:14.173Z","datePublished":"2026-10-12T18:32:00.821Z","dateUpdated":"2026-10-13T16:31:17.851Z"},"containers":{"cna":{"title":"copyparty FTP: upload outside defined volumes (limited path traversal)","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/9001/copyparty/security/advisories/GHSA-phv8-wgjp-g4p9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/9001/copyparty/security/advisories/GHSA-phv8-wgjp-g4p9"},{"name":"https://github.com/9001/copyparty/security/advisories/GHSA-phv8-wgjp-g4p9","tags":["x_refsource_MISC"],"url":"https://github.com/9001/copyparty/security/advisories/GHSA-phv8-wgjp-g4p9"},{"name":"https://github.com/9001/copyparty/commit/b331bb1c8c8cc306b91e4d94221969335a7a3e86","tags":["x_refsource_MISC"],"url":"https://github.com/9001/copyparty/commit/b331bb1c8c8cc306b91e4d94221969335a7a3e86"},{"name":"https://github.com/9001/copyparty/releases/tag/v1.20.19","tags":["x_refsource_MISC"],"url":"https://github.com/9001/copyparty/releases/tag/v1.20.19"}],"affected":[{"vendor":"9001","product":"copyparty","versions":[{"version":"< 1.20.19","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-12T18:32:00.821Z"},"descriptions":[{"lang":"en","value":"copyparty is a portable file server. Prior to 1.20.19, FTP upload path handling does not confine destinations to configured copyparty volumes. When FTP or FTPS is explicitly enabled, a low-privileged authenticated user can submit traversal paths during upload to create a new file outside configured volumes wherever the copyparty process has write permission. The attacker cannot read or overwrite files, the output name receives a randomized suffix, and copyparty does not execute the file; however, unrelated software on the same host could process the newly created file. This issue is fixed in version 1.20.19."}],"source":{"advisory":"GHSA-phv8-wgjp-g4p9","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-13T16:30:31.058298Z","id":"CVE-2026-104102","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-13T16:31:17.851Z"}}]}}