CVE-2026-59818

EUVD-2026-42426

08.07.2026, 21:16

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	6.5 MEDIUM	NETWORK	LOW	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Common Weakness Enumeration

CWE-295 - Improper Certificate Validation
The software does not validate, or incorrectly validates, a certificate.

References

https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef

https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f

https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb

https://github.com/etcd-io/etcd/pull/22007

https://github.com/etcd-io/etcd/pull/22021

https://github.com/etcd-io/etcd/pull/22025

https://github.com/etcd-io/etcd/releases/tag/v3.5.32

https://github.com/etcd-io/etcd/releases/tag/v3.6.13

https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92