{"id":"CVE-2026-68930","aliases":["GHSA-m65r-rprj-r5rg"],"url":"https://o3.security/vulnerability/CVE-2026-68930","summary":"Russh: Channel-scoped server callbacks can be reached without an open channel","details":"Russh is a Rust SSH client & server library. Prior to 0.62.5, russh dispatches channel-scoped Handler callbacks for recipient channel IDs that were never opened or confirmed in russh/src/server/encrypted.rs, server_read_authenticated, and the exec_request callback. Version 0.62.5 fixes the issue.","published":"2026-08-03T15:34:41.216Z","modified":"2026-09-11T03:48:18.871531222Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},"epss":{"score":0.00259,"percentile":0.17798,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"russh","fixedVersion":"0.62.5"}],"fix":{"url":"https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171","label":"Eugeny/russh@7c5659f"},"references":[{"type":"WEB","url":"https://github.com/Eugeny/russh/releases/tag/v0.62.5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68930.json"},{"type":"ADVISORY","url":"https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68930"},{"type":"FIX","url":"https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T03:48:18.871531222Z"}}