CVE-2026-66373 affecting package valkey 8.0.11-1

{
  "id": "1eda4eb16499a0ae87bb8a218d93c129f675a4549b22fffe191367214e6ba3ac",
  "url": "https://osv.dev/vulnerability/AZL-93408",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-66373 affecting package valkey 8.0.11-1",
    "summary": "Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.",
    "evidence": "osv:AZL-93408",
    "products": [
      {
        "name": {
          "value": "valkey",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "AZL-93408",
      "aliases": [
        "AZL-93408"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "8.0.11-1"
                }
              ]
            }
          ],
          "package": {
            "name": "valkey",
            "purl": "pkg:rpm/azure-linux/valkey",
            "ecosystem": "Azure Linux:3"
          },
          "database_specific": {
            "source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-93408.json"
          }
        }
      ],
      "modified": "2026-10-27T05:36:16Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-66373"
      ],
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-66373"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-66373",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 460672,
  "published_at": "2026-07-25T01:16:26+00:00"
}