CVE-2026-59818 (GCVE-0-2026-59818)

Vulnerability from cvelistv5 – Published: 2026-07-08 21:00 – Updated: 2026-07-08 21:00
VLAI
Title
etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version
etcd-io etcd Affected: >= 3.6.0-alpha.0, < 3.6.13
Affected: < 3.5.32
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{
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          "vendor": "etcd-io",
          "versions": [
            {
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              "version": "\u003e= 3.6.0-alpha.0, \u003c 3.6.13"
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        }
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            "privilegesRequired": "HIGH",
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          "tags": [
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          "url": "https://github.com/etcd-io/etcd/pull/22025"
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          "tags": [
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          "url": "https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef"
        },
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          "url": "https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f"
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          "url": "https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb"
        },
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          "name": "https://github.com/etcd-io/etcd/releases/tag/v3.5.32",
          "tags": [
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          "url": "https://github.com/etcd-io/etcd/releases/tag/v3.5.32"
        },
        {
          "name": "https://github.com/etcd-io/etcd/releases/tag/v3.6.13",
          "tags": [
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          ],
          "url": "https://github.com/etcd-io/etcd/releases/tag/v3.6.13"
        }
      ],
      "source": {
        "advisory": "GHSA-3wh4-j44w-pg92",
        "discovery": "UNKNOWN"
      },
      "title": "etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-59818",
    "datePublished": "2026-07-08T21:00:18.207Z",
    "dateReserved": "2026-07-07T15:00:50.978Z",
    "dateUpdated": "2026-07-08T21:00:18.207Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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