{"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":"### Vulnerability type\nAccess Controls\n\n### Detail\netcd creates certain directory paths (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.\n### Specific Go Package Affected\ngithub.com/etcd-io/etcd/pkg/fileutil\n### Workarounds\nMake sure these directories have the desired permit (700).\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":"2020-08-05T20:15:14.647Z","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":{"score":0.00227,"percentile":0.13739,"asOf":"2026-08-23"},"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":{"url":"https://github.com/etcd-io/etcd/commit/6be5c54c94298ae6746a574d2af8227d0c9a998b","label":"etcd-io/etcd@6be5c54"},"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"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15113"},{"type":"WEB","url":"https://github.com/etcd-io/etcd/commit/6be5c54c94298ae6746a574d2af8227d0c9a998b"},{"type":"WEB","url":"https://github.com/etcd-io/etcd/commit/e5424fc474b274c9e6b5205165015bc2035745f2"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:59:30.020736481Z"}}