{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.6.0-alpha.0"
              },
              {
                "fixed": "3.6.13"
              },
              {
                "introduced": "0"
              },
              {
                "fixed": "3.5.32"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "fb559105006337157635673f216c2f1392050f83"
            },
            {
              "introduced": "0"
            },
            {
              "fixed": "b0f9ef190952e6e66a778513097a02ee41220727"
            },
            {
              "fixed": "32c8992df2e62e8a99decde1e7abcb3cc40cb5e6"
            },
            {
              "fixed": "2308ce1578064641d4d67c40f0487309267d1bef"
            },
            {
              "fixed": "24838af5a53dd0245adced920e42a9bf0e7a267f"
            },
            {
              "fixed": "8221ae82bc25d4d55ca64382207b69be71038cbb"
            }
          ],
          "repo": "https://github.com/etcd-io/etcd",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3wh4-j44w-pg92"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-295"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59818.json"
  },
  "details": "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.",
  "id": "CVE-2026-59818",
  "modified": "2026-07-12T03:55:19.834489781Z",
  "published": "2026-07-08T21:00:18.207Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/etcd-io/etcd/releases/tag/v3.5.32"
    },
    {
      "type": "WEB",
      "url": "https://github.com/etcd-io/etcd/releases/tag/v3.6.13"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59818.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59818"
    },
    {
      "type": "FIX",
      "url": "https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef"
    },
    {
      "type": "FIX",
      "url": "https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb"
    },
    {
      "type": "FIX",
      "url": "https://github.com/etcd-io/etcd/pull/22007"
    },
    {
      "type": "FIX",
      "url": "https://github.com/etcd-io/etcd/pull/22021"
    },
    {
      "type": "FIX",
      "url": "https://github.com/etcd-io/etcd/pull/22025"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation"
}