CVE-2026-59818
Severity CVSS v4.0:
Pending analysis
Type:
CWE-295
Improper Certificate Validation
Publication date:
08/07/2026
Last modified:
13/07/2026
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.
Impact
Base Score 3.x
6.50
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:* | 3.5.32 (excluding) | |
| cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:* | 3.6.0 (including) | 3.6.13 (excluding) |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- 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