{"id":"CVE-2017-20166","aliases":["GHSA-2xxx-fhc8-9qvq"],"url":"https://o3.security/vulnerability/CVE-2017-20166","summary":"Ecto missing `is_nil` requirement","details":"Ecto will not raise on queries with non-explicit nil comparisons (ie if they aren't checked with `is_nil`).","published":"2023-01-10T06:15:09.610Z","modified":"2026-10-20T10:48:53.896236879Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"Hex","name":"ecto","fixedVersion":"2.2.1"}],"fix":{"url":"https://github.com/elixir-ecto/ecto/commit/db55b0cba6525c24ebddc88ef9ae0c1c00620250","label":"elixir-ecto/ecto@db55b0c"},"references":[{"type":"WEB","url":"https://groups.google.com/forum/#%21topic/elixir-ecto/0m4NPfg_MMU"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-2xxx-fhc8-9qvq"},{"type":"FIX","url":"https://github.com/elixir-ecto/ecto/commit/db55b0cba6525c24ebddc88ef9ae0c1c00620250"},{"type":"EVIDENCE","url":"https://github.com/elixir-ecto/ecto/pull/2125"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-20166"},{"type":"PACKAGE","url":"https://github.com/elixir-ecto/ecto"},{"type":"WEB","url":"https://groups.google.com/forum/#!topic/elixir-ecto/0m4NPfg_MMU"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-20T10:48:53.896236879Z"}}