CVE-2026-59818

medium

Description

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.

References

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

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

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

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

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2026-07-08

Updated: 2026-07-08

Risk Information

CVSS v2

Base Score: 7.7

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Severity: Medium