{"id":"EUVD-2026-89207","revision":"948cb3bafeff4a3ba1e4b4e9723efd34","records":[{"revision":"948cb3bafeff4a3ba1e4b4e9723efd34","observedAt":"2026-11-11T05:29:30.077+00:00","statement":{"source":"euvd","id":"EUVD-2026-89207","aliases":["CVE-2026-102824","GHSA-w3jg-pjxf-73p4"],"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":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3,"severity":null}],"references":["https://github.com/Eugeny/russh/security/advisories/GHSA-w3jg-pjxf-73p4","https://github.com/Eugeny/russh/commit/8da8967f196472576b1565d518a0ed60fce60f0c","https://github.com/Eugeny/russh/releases/tag/v0.63.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89207","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 29, 2026, 6:27:41 PM","dateUpdated":"Sep 30, 2026, 8:24:58 PM"},"relatedAdvisories":[{"id":"RHSA-2026:74586","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","vulnerabilityIds":["CVE-2026-102821","CVE-2026-102823","CVE-2026-102824","CVE-2026-102825"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-89207","identifiers":["EUVD-2026-89207","CVE-2026-102824","GHSA-w3jg-pjxf-73p4"]},"retained":false,"historicalAffected":[]}],"coverage":[]}