{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:mem0:mem0:1.0.0:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "1.0.0"
              },
              {
                "last_affected": "1.0.0"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "394203d1b5f56385d28690ea27c0d746007ff940"
            },
            {
              "last_affected": "394203d1b5f56385d28690ea27c0d746007ff940"
            }
          ],
          "repo": "https://github.com/mem0ai/mem0",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31243.json"
  },
  "details": "The mem0 1.0.0 server lacks authentication and authorization controls for its memory reset and table re-creation functionality accessible via the DELETE /memories endpoint. An unauthenticated attacker can send a DELETE request that triggers a reset operation, leading to the execution of a CREATE TABLE SQL statement. This can cause unexpected table re-creation, schema disruption, potential data loss, and denial of service for the memory management service.",
  "id": "CVE-2026-31243",
  "modified": "2026-08-12T03:51:13.488817073Z",
  "published": "2026-05-12T00:00:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.notion.so/CVE-2026-31243-35d1e139318881c6a6cffbe366c238a6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31243.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31243"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mem0ai/mem0"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}