{"id":"CVE-2020-10591","aliases":["GHSA-6566-9526-52v6"],"url":"https://o3.security/vulnerability/CVE-2020-10591","summary":"Exposure of Sensitive Information to an Unauthorized Actor in Concord","details":"An issue was discovered in Walmart Labs Concord before 1.44.0. CORS Access-Control-Allow-Origin headers have a potentially unsafe dependency on Origin headers, and are not configurable. This allows remote attackers to discover host information, nodes, API metadata, and references to usernames via api/v1/apikey.","published":"2020-03-15T21:15:11.880Z","modified":"2026-07-08T20:58:39.191438Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.walmartlabs.concord:concord-common","fixedVersion":"1.44.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/walmartlabs/concord/compare/1.43.0...1.44.0"},{"type":"ADVISORY","url":"https://github.com/walmartlabs/concord/issues/22"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:58:39.191438Z"}}