{"id":"CVE-2026-48107","aliases":["GHSA-g9g7-5cgw-6v28"],"url":"https://o3.security/vulnerability/CVE-2026-48107","summary":"Russh: Unchecked keyboard-interactive prompt count in client auth path","details":"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.","published":"2026-06-10T20:23:45.325Z","modified":"2026-08-12T03:51:11.034809254Z","cvss":{"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"},"epss":{"score":0.00232,"percentile":0.13891,"asOf":"2026-09-02"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"russh","fixedVersion":"0.61.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48107.json"},{"type":"ADVISORY","url":"https://github.com/Eugeny/russh/security/advisories/GHSA-g9g7-5cgw-6v28"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48107"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:11.034809254Z"}}