Denial of service via crafted push/pull gossip message in memberlist

{
  "id": "0ad92a7202d7a48b05326481c8c0b06d3e00d6f4be8fface380cdd355287200d",
  "url": "https://osv.dev/vulnerability/CVE-2026-14362",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Denial of service via crafted push/pull gossip message in memberlist",
    "summary": "HashiCorp memberlist before version 0.6.0 is vulnerable to a denial-of-service issue in its push/pull state handling that may allow an attacker with network access to the gossip port to exhaust memory on a receiving node and cause the process to terminate. This vulnerability (CVE-2026-14362) is fixed in memberlist 0.6.0.",
    "evidence": "osv:CVE-2026-14362",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-14362",
      "aliases": [
        "CVE-2026-14362"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hashicorp/memberlist",
              "type": "GIT",
              "events": [
                {
                  "introduced": "08c40f9c3d80ff3cad168e02c8dca2713e57821b"
                },
                {
                  "fixed": "371698b4dc493ecf2fc94c4383c75b2c9358f6c9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.1.5"
                      },
                      {
                        "fixed": "0.6.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.5.4",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.0",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.7",
            "v0.1.6",
            "v0.1.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14362.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.811849739Z",
      "provider": "osv",
      "references": [
        "https://discuss.hashicorp.com/t/hcsec-2026-18-memberlist-vulnerable-to-denial-of-service-via-gossip-message/77556",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14362.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-14362",
        "https://github.com/hashicorp/memberlist"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-770"
        ],
        "cna_assigner": "HashiCorp",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14362.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-14362",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498800,
  "published_at": "2026-07-08T17:14:18.218+00:00"
}