PT-2026-56612 · Etcd-Io · Etcd

Published 2026-07-08 · Updated 2026-07-08 · CVE-2026-59818

NVD

CVSS v3.1

6.5

Medium

Base vector

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

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.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2026-59818

Affected Products

Etcd

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-59818 · Security Note
• https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f · Note
• https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef · Note
• https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb · Note
• https://github.com/etcd-io/etcd/releases/tag/v3.6.13 · Note
• https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92 · Note
• https://github.com/etcd-io/etcd/pull/22021 · Note
• https://github.com/etcd-io/etcd/releases/tag/v3.5.32 · Note
• https://github.com/etcd-io/etcd/pull/22007 · Note
• https://github.com/etcd-io/etcd/pull/22025 · Note