CVE-2026-59818

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.

PUBLISHED Reserved 2026-07-07 | Published 2026-07-08 | Updated 2026-07-09 | Assigner GitHub_M

Problem types

CWE-295: Improper Certificate Validation

Product status

References

github.com/...o/etcd/security/advisories/GHSA-3wh4-j44w-pg92

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

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

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

github.com/...ommit/2308ce1578064641d4d67c40f0487309267d1bef

github.com/...ommit/24838af5a53dd0245adced920e42a9bf0e7a267f

github.com/...ommit/8221ae82bc25d4d55ca64382207b69be71038cbb

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

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

cve.org (CVE-2026-59818)

nvd.nist.gov (CVE-2026-59818)

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