{"id":"UBUNTU-CVE-2026-82481","details":"The cohttp package before 6.3.0 for OCaml allows directory traversal.","modified":"2026-09-02T16:28:28Z","published":"2026-08-29T15:17:00Z","upstream":["CVE-2026-82481"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-82481"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-82481"},{"type":"REPORT","url":"https://github.com/mirage/ocaml-cohttp/pull/1145"},{"type":"REPORT","url":"https://github.com/mirage/ocaml-cohttp/pull/1145"}],"affected":[{"package":{"name":"ocaml-cohttp","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ocaml-cohttp?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.0-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"4.0.0-1build2","binary_name":"libcohttp-lwt-jsoo-ocaml"},{"binary_name":"libcohttp-lwt-ocaml","binary_version":"4.0.0-1build2"},{"binary_name":"libcohttp-lwt-unix-ocaml","binary_version":"4.0.0-1build2"},{"binary_version":"4.0.0-1build2","binary_name":"libcohttp-ocaml"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82481.json"}},{"package":{"name":"ocaml-cohttp","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ocaml-cohttp?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.1.0-2build3","5.3.0-1","5.3.0-1build1","5.3.0-1build4","5.3.0-1build5","5.3.0-1build6"],"ecosystem_specific":{"binaries":[{"binary_version":"5.3.0-1build6","binary_name":"libcohttp-lwt-jsoo-ocaml"},{"binary_version":"5.3.0-1build6","binary_name":"libcohttp-lwt-ocaml"},{"binary_version":"5.3.0-1build6","binary_name":"libcohttp-lwt-unix-ocaml"},{"binary_version":"5.3.0-1build6","binary_name":"libcohttp-ocaml"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82481.json"}},{"package":{"name":"ocaml-cohttp","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/ocaml-cohttp?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1build29","5.3.0-2","5.3.0-2build2","5.3.0-2build3","5.3.0-2build5","5.3.0-2build8"],"ecosystem_specific":{"binaries":[{"binary_name":"libcohttp-lwt-jsoo-ocaml","binary_version":"5.3.0-2build8"},{"binary_name":"libcohttp-lwt-ocaml","binary_version":"5.3.0-2build8"},{"binary_name":"libcohttp-lwt-unix-ocaml","binary_version":"5.3.0-2build8"},{"binary_version":"5.3.0-2build8","binary_name":"libcohttp-ocaml"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82481.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/AU:Y/R:A/V:D/RE:M"},{"type":"Ubuntu","score":"medium"}]}