CVE-2026-59818
6.5
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| etcd-io | etcd | >= 3.6.0-alpha.0, < 3.6.13 | affected |
| etcd-io | etcd | < 3.5.32 | affected |
Weaknesses
- CWE-295: CWE-295: Improper Certificate Validation
References
- https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92
- 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/commit/2308ce1578064641d4d67c40f0487309267d1bef
- https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f
- https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb
- https://github.com/etcd-io/etcd/releases/tag/v3.5.32
- https://github.com/etcd-io/etcd/releases/tag/v3.6.13
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