{"action":"Upgrade asyncssh to 2.24.0 or later.","affected":[{"fixed":"2.24.0","introduced":"0"}],"component":"asyncssh","cve_ids":["CVE-2026-62949"],"ecosystem":"PyPI","epss":0.00389,"exploited":false,"fixed_versions":["2.24.0"],"ghsa_id":"GHSA-rw4j-r22c-9gc3","id":"tcs_01M5KH9BJZJY1X7BTP0NSKTZN1","modified_at":"2026-10-01T17:45:03.138454039Z","published_at":"2026-10-01T16:38:32.551876Z","references":["https://osv.dev/vulnerability/PYSEC-2026-4026","https://github.com/ronf/asyncssh/security/advisories/GHSA-rw4j-r22c-9gc3","https://nvd.nist.gov/vuln/detail/CVE-2026-62949","https://github.com/ronf/asyncssh/commit/756cbae5350789ce9735f15f704bae9b5a3608b8","https://github.com/ronf/asyncssh/commit/9c354270c009285525e126721e8ed5fbed1f8a67","https://github.com/ronf/asyncssh","https://github.com/ronf/asyncssh/releases/tag/v2.24.0","https://pypi.org/project/asyncssh","https://github.com/advisories/GHSA-rw4j-r22c-9gc3"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-4026","url":"https://osv.dev/vulnerability/PYSEC-2026-4026"}],"summary":"AsyncSSH: asyncio event-loop freeze via SSH maximum packet size = 0 in SSH_MSG_CHANNEL_OPEN / OPEN_CONFIRMATION"}