CVE-2022-2835

MEDIUM4.4EPSS 0.09%

coreDNS vulnerable to Improper Restriction of Communication Channel to Intended Endpoints

Published: 3/3/2023Modified: 2/4/2026

Also known as:GHSA-ch7v-37xg-75phCGA-mpcg-c6pg-3qfc

Description

A flaw was found in coreDNS. This flaw allows a malicious user to reroute internal calls to some internal services that were accessed by the FQDN in a format of <service>.<namespace>.svc.

Affected packages (1)

Go/github.com/coredns/corednsfrom 0, <= 1.9.3

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM4.4	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References (3)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2022-2835
PATCHhttps://github.com/coredns/coredns
WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2118542