CVE Database›CVE-2018-1099

CVE-2018-1099

etcd: DNS rebinding vulnerability in etcd server

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Severity

Moderate

Red Hat Product Security

5

CVSS 3.0

Review impact separately from score.

Published · March 7, 2018

Updated · November 22, 2025

Description

It has been discovered that etcd does not correctly restrict access to resources based on hostname. A remote attacker could perform a DNS-rebinding attack and trick the browser into sending requests to an etcd server on an internal network, bypassing the Same-Origin Policy.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Configure and enable authentication on the etcd server or secure your client connection via HTTPS.

CVSS / CWE

CVSS 3.0 · 5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

CWE-284 · Improper Access Control