Most recent entries from all

cnvd-2020-49529

EUVD-2026-42654

fkie_cve-2020-15136

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.

GHSA-wr2v-9rpq-c35q — Etcd Gateway TLS authentication only applies to endpoints detected in DNS SRV records

Affected: Go: go.etcd.io/etcd

### Vulnerability type Cryptography

### Workarounds Refer to the [gateway documentation](https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.md). The vulnerability was spotted due to unclear documentation of how the gateway handles endpoints validation.

### Detail 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. The auditors has noted that appropriate documentation of this validation functionality plus deprecation of this misleading functionality is an acceptable path forward. ### References Find out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf)

### For more information If you have any questions or comments about this advisory: * Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/master/security/security-release-process.md#product-security-committee-psc)

gsd-2020-15136

msrc_CVE-2020-15136 — Improper authentication in etcd

msrc_CVE-2020-15136

RHSA-2021:0916 — Red Hat Security Advisory: Red Hat OpenStack Platform 16.1.4 (etcd) security update

etcd: Large slice causes panic in decodeRecord method etcd: DoS in wal/wal.go etcd: directories created via os.MkdirAll are not checked for permissions etcd: gateway can include itself as an endpoint resulting in resource exhaustion and leads to DoS etcd: improper validation of passwords allow an attacker to guess or brute-force user's passwords etcd: no authentication is performed against endpoints provided in the --endpoints flag

UBUNTU-CVE-2020-15136

Affected: Ubuntu:16.04:LTS: etcd, Ubuntu:Pro:18.04:LTS: etcd, Ubuntu:Pro:20.04:LTS: etcd, Ubuntu:Pro:22.04:LTS: etcd, Ubuntu:Pro:24.04:LTS: etcd, Ubuntu:25.10: etcd, Ubuntu:Pro:26.04:LTS: etcd