{"id":"CVE-2026-102824","revision":"e3be9f59ecdf417e87d200d0aa0dca37","records":[{"revision":"e3be9f59ecdf417e87d200d0aa0dca37","observedAt":"2026-10-25T04:17:26.915+00:00","statement":{"source":"nvd","id":"CVE-2026-102824","aliases":[],"title":"Russh is a Rust SSH client and server library. Prior to 0.63.0, the hybrid ML-KEM 768 and X25519 implementation in russh/src/kex/hybrid_mlkem.rs accepts an all-zero 32-byte peer X25519 public key in both server_dh and compute_shared_secret,…","description":"Russh is a Rust SSH client and server library. Prior to 0.63.0, the hybrid ML-KEM 768 and X25519 implementation in russh/src/kex/hybrid_mlkem.rs accepts an all-zero 32-byte peer X25519 public key in both server_dh and compute_shared_secret, forcing the X25519 contribution to the combined shared secret to zero. A malicious SSH peer can therefore make the combined secret depend only on ML-KEM, defeating the hybrid exchange's intended fallback protection if ML-KEM is later weakened. This issue is fixed in version 0.63.0.","state":0,"publishedAt":"2026-09-29T19:17:24.543+00:00","modifiedAt":"2026-09-30T21:17:05.92+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/Eugeny/russh/commit/8da8967f196472576b1565d518a0ed60fce60f0c","https://github.com/Eugeny/russh/releases/tag/v0.63.0","https://github.com/Eugeny/russh/security/advisories/GHSA-w3jg-pjxf-73p4"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102824","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-327"],"productCriteria":[],"sourceDates":{"published":"2026-09-29T19:17:24.543","lastModified":"2026-09-30T21:17:05.920"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-102824","identifiers":["CVE-2026-102824"]},"retained":false,"historicalAffected":[]}],"coverage":[]}