{"id":"CVE-2020-15113","aliases":["BIT-etcd-2020-15113","GHSA-chh6-ppwq-jh92"],"url":"https://o3.security/vulnerability/CVE-2020-15113","summary":"Improper Preservation of Permissions in etcd","details":"In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).","published":"2020-08-05T20:15:14.647Z","modified":"2026-07-08T05:59:30.020736481Z","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/etcd-io/etcd","fixedVersion":"3.4.10"},{"ecosystem":"Go","name":"github.com/etcd-io/etcd","fixedVersion":"3.3.23"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"},{"type":"ADVISORY","url":"https://github.com/etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:59:30.020736481Z"}}