{"cve":"CVE-2020-15136","nvd":{"published":"2020-08-06T23:15:11.577","modified":"2026-06-17T02:56:07.333","status":"Modified","description":"In ectd before versions 3.4.10 and 3.3.23, gateway TLS authentication is only applied to endpoints detected in DNS SRV records. When starting a gateway, TLS authentication will only be attempted on endpoints identified in DNS SRV records for a given domain, which occurs in the discoverEndpoints function. No authentication is performed against endpoints provided in the --endpoints flag. This has been fixed in versions 3.4.10 and 3.3.23 with improved documentation and deprecation of the functionality.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","score":6.5},"cwes":["CWE-306","CWE-287"],"references":["https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.md","https://github.com/etcd-io/etcd/security/advisories/GHSA-wr2v-9rpq-c35q","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/","https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.md","https://github.com/etcd-io/etcd/security/advisories/GHSA-wr2v-9rpq-c35q"],"products":["fedoraproject:fedora","redhat:etcd"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-15136","score":0.0165,"percentile":0.76518,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wr2v-9rpq-c35q","url":"https://osv.dev/vulnerability/GHSA-wr2v-9rpq-c35q","summary":"Etcd Gateway TLS authentication only applies to endpoints detected in DNS SRV records","modified":"2026-09-10T03:50:09.551282141Z","packages":[{"ecosystem":"Go","name":"go.etcd.io/etcd","purl":"pkg:golang/go.etcd.io/etcd","ranges":[">=3.4.0-rc.0 <3.4.10"],"fixed":["3.4.10"]},{"ecosystem":"Go","name":"go.etcd.io/etcd","purl":"pkg:golang/go.etcd.io/etcd","ranges":["<3.3.23"],"fixed":["3.3.23"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}