CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:NCVE-2020-15136
Medium (6.5). EPSS 1.7% chance of exploitation in the next 30 days. Fixed in go.etcd.io/etcd 3.3.23, 3.4.10.
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.
Severity
- EPSS
- 1.7% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-306, CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- redhat:etcd
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-wr2v-9rpq-c35q | Go | go.etcd.io/etcd | >=3.4.0-rc.0 <3.4.10 | 3.4.10 |
| GHSA-wr2v-9rpq-c35q | Go | go.etcd.io/etcd | <3.3.23 | 3.3.23 |
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