CVE-2026-59818
Publication date 9 July 2026
Last updated 9 July 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| etcd | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
6.5 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-59818
- 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