{"id":"JLSEC-2026-77","details":"OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.","modified":"2026-04-09T21:46:58.383137Z","published":"2026-04-09T21:32:46.691Z","upstream":["CVE-2026-35388","EUVD-2026-18404"],"database_specific":{"sources":[{"modified":"2026-04-03T16:10:23.730Z","published":"2026-04-02T17:16:27.947Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-35388","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35388","imported":"2026-04-09T14:56:39.274Z","id":"CVE-2026-35388"},{"modified":"2026-04-02T18:31:38Z","published":"2026-04-02T18:31:38Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-18404","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-18404","imported":"2026-04-09T14:56:20.702Z","id":"EUVD-2026-18404"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2"},{"type":"WEB","url":"https://www.openssh.org/releasenotes.html#10.3p1"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/04/02/3"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35388"}],"affected":[{"package":{"name":"OpenSSH_jll","ecosystem":"Julia","purl":"pkg:julia/OpenSSH_jll?uuid=9bd350c2-7e96-507f-8002-3f2e150b4e1b"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"10.3.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-77.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N"}]}