{"id":"CVE-2026-111061","revision":"5e6aaf66638044afab630c80e7116034","records":[{"revision":"5e6aaf66638044afab630c80e7116034","observedAt":"2026-10-25T05:17:13.11+00:00","statement":{"source":"nvd","id":"CVE-2026-111061","aliases":[],"title":"russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to 0.64.1, the agent server spawns a separate long-lived task for every SSH_AGENT_CONSTRAIN_LIFETIME record in a constrained add-key req…","description":"russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to 0.64.1, the agent server spawns a separate long-lived task for every SSH_AGENT_CONSTRAIN_LIFETIME record in a constrained add-key request. The loop accepts repeated lifetime records, clones the key blob into each task, and does not roll back tasks when later constraint parsing fails. An attacker that can speak the agent protocol locally or through agent forwarding can exhaust memory and tasks until the agent process is starved or terminated, denying SSH agent service. This issue is fixed in version 0.64.1.","state":0,"publishedAt":"2026-10-19T17:17:03.08+00:00","modifiedAt":"2026-10-19T19:17:22.89+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/Eugeny/russh/commit/4c305033d72f8e5dd21a3fd4c53a6c291a16ebd1","https://github.com/Eugeny/russh/releases/tag/v0.64.1","https://github.com/Eugeny/russh/security/advisories/GHSA-4wc5-f2rc-q74m"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-111061","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-770"],"productCriteria":[],"sourceDates":{"published":"2026-10-19T17:17:03.080","lastModified":"2026-10-19T19:17:22.890"},"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-2026-111061","identifiers":["CVE-2026-111061"]},"retained":false,"historicalAffected":[]}],"coverage":[]}