{"id":"CVE-2026-102822","revision":"6e0785da728b4e35a4b77e95d432900c","records":[{"revision":"6e0785da728b4e35a4b77e95d432900c","observedAt":"2026-10-25T04:17:26.915+00:00","statement":{"source":"nvd","id":"CVE-2026-102822","aliases":[],"title":"Russh is a Rust SSH client and server library. Prior to 0.63.1, a connection configured to permit mac=none can negotiate it with a MAC-requiring CTR or CBC block cipher because the selection logic validates needs_mac() only when MAC selecti…","description":"Russh is a Rust SSH client and server library. Prior to 0.63.1, a connection configured to permit mac=none can negotiate it with a MAC-requiring CTR or CBC block cipher because the selection logic validates needs_mac() only when MAC selection fails. A remote peer can then send a packet with a decrypted length of zero, causing russh/src/cipher/mod.rs to shrink the previously read block before indexing buffer.buffer[16..], which panics and terminates the connection task. This issue is fixed in version 0.63.1.","state":0,"publishedAt":"2026-09-29T19:17:24.19+00:00","modifiedAt":"2026-09-29T20:17:17.673+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","score":3.7,"severity":"LOW"}],"references":["https://github.com/Eugeny/russh/commit/2885385abfee279092a41d80c6cb6ac367353159","https://github.com/Eugeny/russh/releases/tag/v0.63.1","https://github.com/Eugeny/russh/security/advisories/GHSA-p8qx-h547-fjw9"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102822","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-129"],"productCriteria":[],"sourceDates":{"published":"2026-09-29T19:17:24.190","lastModified":"2026-09-29T20:17:17.673"},"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-2026-102822","identifiers":["CVE-2026-102822"]},"retained":false,"historicalAffected":[]}],"coverage":[]}