{"schemaVersion":3,"id":"CVE-2026-48107","aliases":["DEBIAN-CVE-2026-48107","GHSA-g9g7-5cgw-6v28"],"status":"published","duplicateOf":null,"title":null,"description":"Russh is a Rust SSH client & server library. From version 0.37.0 to before version 0.61.0, in the russh client keyboard-interactive authentication path, a malicious SSH server could send a USERAUTH_INFO_REQUEST with an attacker-controlled prompt count, and the client would use that raw count directly in Vec::with_capacity(...) before validating that enough prompt data was actually present in the packet. This issue has been patched in version 0.61.0.","dates":{"published":"2026-06-10T20:23:45.325Z","modified":"2026-06-11T13:05:20.827Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Crates.io","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00418,"percentile":0.34736,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.18599999999999997,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00232},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00418,"percentile":0.34736}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00232,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00418,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00418,"percentile":0.34736}]},"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-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"Crates.Io","product":"russh","name":"russh","label":"russh","ecosystem":"Crates.Io","cpePart":null,"purl":"pkg:cargo/russh","purlType":"cargo","versions":[{"text":"≥ 0.37.0, < 0.61.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 0.37.0, < 0.61.0","eol":null,"hubHref":null},{"vendor":"debian","product":"rust-russh","name":"rust-russh","label":"rust-russh","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/rust-russh","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 0.64.1-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 0.64.1-1","eol":null,"hubHref":null},{"vendor":"eugeny","product":"russh","name":"russh","label":"russh","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 0.37.0, < 0.61.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 0.37.0, < 0.61.0","eol":null,"hubHref":"/vendor/eugeny/russh"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/Eugeny/russh/security/advisories/GHSA-g9g7-5cgw-6v28","label":"github.com/Eugeny/russh/security/advisories/GHSA-g9g7-5cgw-6v28","hostname":"github.com","tags":["X Refsource CONFIRM","WEB"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-48107","label":"security-tracker.debian.org/tracker/CVE-2026-48107","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48107","label":"nvd.nist.gov/vuln/detail/CVE-2026-48107","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/Eugeny/russh","label":"github.com/Eugeny/russh","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-06-10T20:23:45.325Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-11T13:05:20.827Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T13:38:02.906Z","stale":false,"partial":false}}