{"id":"CVE-2020-15115","aliases":["GHSA-4993-m7g5-r9hh"],"url":"https://o3.security/vulnerability/CVE-2020-15115","summary":"etcd has no minimum password length","details":"### Vulnerability type\nAccess Control\n\n### Workarounds\nThe etcdctl and etcd API do not enforce a specific password length during user creation or user password update operations. [It is the responsibility of the administrator to enforce these requirements](https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/authentication.md#notes-on-password-strength).\n\n### Detail\netcd does not perform any password length validation, which allows for very short passwords, such as those with a length of one. This may allow an attacker to guess or brute-force users’ passwords with little computational effort.\n\n### References\nFind out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/master/security/security-release-process.md#product-security-committee-psc)","published":"2020-08-06T22:15:12.093Z","modified":"2026-07-08T05:59:38.013395204Z","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":{"score":0.01342,"percentile":0.68768,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"go.etcd.io/etcd/client/v3","fixedVersion":"3.4.10"},{"ecosystem":"Go","name":"go.etcd.io/etcd/client/v3","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-4993-m7g5-r9hh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15115"},{"type":"PACKAGE","url":"https://github.com/etcd-io/etcd"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:59:38.013395204Z"}}