etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-59818US | high8.1 | — | ||
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 gRP… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1befFIX
- https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267fFIX
- https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbbFIX
- https://github.com/etcd-io/etcd/pull/22007FIX
- https://github.com/etcd-io/etcd/pull/22021FIX
- https://github.com/etcd-io/etcd/pull/22025FIX
- https://github.com/etcd-io/etcd/releases/tag/v3.5.32ARTICLE
- https://github.com/etcd-io/etcd/releases/tag/v3.6.13ARTICLE
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