{"schemaVersion":3,"id":"CVE-2026-56452","aliases":["UBUNTU-CVE-2026-56452","DEBIAN-CVE-2026-56452"],"status":"published","duplicateOf":null,"title":null,"description":"Path traversal in the sshd-scp component of Apache MINA SSHD. Apache MINA SSHD is a Java library for client-side and server-side SSH.\n\n\n\n\nThe implementation of receiving files or directories via SCP did not validate filenames in SCP \"C\" or \"D\" commands. A malicious sender could send filenames containing paths, resulting in files to be written in attacker-controlled places.\n\n\n\n\nThe issue affects only\n\n  *  applications that use no longer supported Apache MINA SSHD versions < 2.0.0 and use the SCP functions to receive files,\n  *  or applications using sshd-scp in Apache MINA SSHD >= 2.0.0 to receive files.\n\n\n\n\nApplications using Apache MINA SSHD >= 2.0.0 not using sshd-scp are not affected.\n\n\n\n\nThe issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions.","dates":{"published":"2026-07-20T20:26:28.301Z","modified":"2026-07-21T17:15:49.562Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00772,"percentile":0.54855,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0.262,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.0051},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00772,"percentile":0.54855}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00772,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00772,"percentile":0.54855}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","description":"The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/22.html"},{"id":"CWE-73","name":"External Control of File Name or Path","description":"The product allows user input to control or influence paths or file names that are used in filesystem operations.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/73.html"}],"affected":[{"vendor":"apache software foundation","product":"apache mina sshd","name":"Apache MINA SSHD","label":"apache mina sshd","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 2.18.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.0.0-M1, ≤ 3.0.0-M4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 2.18.0 | ≥ 3.0.0-M1, ≤ 3.0.0-M4","eol":null,"hubHref":"/vendor/apache_software_foundation/apache_mina_sshd"},{"vendor":"apache","product":"mina_sshd","name":"mina sshd","label":"mina_sshd","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.0.0, < 2.19.0","noFixRecorded":false,"fixedIn":null},{"text":"3.0.0:m1","noFixRecorded":false,"fixedIn":null},{"text":"3.0.0:m2","noFixRecorded":false,"fixedIn":null},{"text":"3.0.0:m3","noFixRecorded":false,"fixedIn":null},{"text":"3.0.0:m4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.0.0, < 2.19.0 | 3.0.0:m1 | 3.0.0:m2 | 3.0.0:m3 | 3.0.0:m4","eol":null,"hubHref":"/vendor/apache/mina_sshd"},{"vendor":"debian","product":"libmina-sshd-java","name":"libmina-sshd-java","label":"libmina-sshd-java","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/libmina-sshd-java","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mina","name":"mina","label":"mina","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mina","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mina2","name":"mina2","label":"mina2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mina2","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":5,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://lists.apache.org/thread/xgoqvmksmd94fsqnzqjdtfjxf35os9no","label":"lists.apache.org/thread/xgoqvmksmd94fsqnzqjdtfjxf35os9no","hostname":"lists.apache.org","tags":["Vendor Advisory","Mailing List"]},{"url":"http://www.openwall.com/lists/oss-security/2026/07/20/15","label":"www.openwall.com/lists/oss-security/2026/07/20/15","hostname":"www.openwall.com","tags":["Mailing List","Third Party Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-56452","label":"ubuntu.com/security/CVE-2026-56452","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-56452","label":"www.cve.org/CVERecord?id=CVE-2026-56452","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://www.openwall.com/lists/oss-security/2026/07/20/15","label":"www.openwall.com/lists/oss-security/2026/07/20/15","hostname":"www.openwall.com","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-56452","label":"security-tracker.debian.org/tracker/CVE-2026-56452","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:11327-1","SUSE-SU-2026:3339-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:11327-1","SUSE-SU-2026:3339-1"]},"timeline":[{"kind":"published","date":"2026-07-20T20:26:28.301Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-21T17:15:49.562Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T03:58:10.806Z","stale":false,"partial":false}}