CVE-2026-59818

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the gRPC listener, allowing a client with a revoked certificate to authenticate successfully over gRPC. This issue is fixed in versions 3.5.32 and 3.6.13.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef	Patch
https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f	Patch
https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb	Patch
https://github.com/etcd-io/etcd/pull/22007	Issue Tracking Patch
https://github.com/etcd-io/etcd/pull/22021	Issue Tracking Patch
https://github.com/etcd-io/etcd/pull/22025	Issue Tracking Patch
https://github.com/etcd-io/etcd/releases/tag/v3.5.32	Product Release Notes
https://github.com/etcd-io/etcd/releases/tag/v3.6.13	Product Release Notes
https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:etcd:etcd::::::::
	cpe:2.3:a:etcd:etcd::::::::

History

No history.

Information

Published : 2026-07-08 21:16

Updated : 2026-07-13 14:50

NVD link : CVE-2026-59818

Mitre link : CVE-2026-59818

CVE.ORG link : CVE-2026-59818

JSON object : View

Products Affected

etcd

etcd

CWE

CWE-295

Improper Certificate Validation

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