{"action":"Upgrade russh to 0.63.2 or later.","affected":[{"fixed":"0.63.2","introduced":"0"}],"component":"russh","cve_ids":["CVE-2026-102821"],"ecosystem":"crates.io","epss":0.00358,"exploited":false,"fixed_versions":["0.63.2"],"ghsa_id":"GHSA-35g8-35p8-c8fw","id":"tcs_01M5KERQE0Q2CM35HYN0VQKHZG","modified_at":"2026-10-01T00:00:04.683452538Z","published_at":"2026-09-30T23:40:43Z","references":["https://osv.dev/vulnerability/GHSA-35g8-35p8-c8fw","https://github.com/Eugeny/russh/security/advisories/GHSA-35g8-35p8-c8fw","https://nvd.nist.gov/vuln/detail/CVE-2026-102821","https://github.com/Eugeny/russh/commit/a282af361ac99bc76b80876d1aae128e89dbf66b","https://github.com/Eugeny/russh","https://github.com/Eugeny/russh/releases/tag/v0.63.2"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-35g8-35p8-c8fw","url":"https://osv.dev/vulnerability/GHSA-35g8-35p8-c8fw"}],"summary":"Russh: Unbounded memory exhaustion via CHANNEL_OPEN flood during a client-stalled rekey"}