SurrealDB before v2.6.1 Denial of Service via scripting

{
  "id": "a5051dd3d4dfbe6ba929e93702af677084032f2ba72d43d347b4ce3ea8df79e7",
  "url": "https://osv.dev/vulnerability/CVE-2026-63762",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "SurrealDB before v2.6.1 Denial of Service via scripting",
    "summary": "SurrealDB before v2.6.1 (and before v3.0.0-beta.3) contains a denial of service vulnerability in its embedded JavaScript scripting engine, which is enabled via the --allow-scripting capability (disabled by default). Any user able to execute arbitrary queries — including unauthenticated guests when --allow-guests is enabled — can use built-in string functions to construct a large string and pass it to the JavaScript runtime for compilation, triggering a null pointer dereference in the underlying QuickJS-NG engine. This causes the server process to terminate immediately without graceful shutdown, requiring a manual restart. The issue was fixed by updating the rquickjs dependency from v0.9.0 to v0.11.0.",
    "evidence": "osv:CVE-2026-63762",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-63762",
      "aliases": [
        "CVE-2026-63762",
        "GHSA-xx7m-69ff-9crp"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/surrealdb/surrealdb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0dee3af0083916e599aaaf989de8c02679a401be"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.6.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.6.0",
            "v2.5.0",
            "v2.4.1",
            "v2.4.0",
            "v2.3.10",
            "v2.3.9",
            "v2.3.8",
            "v2.3.5",
            "v2.3.4",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.0.4",
            "v2.2.0",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v2.0.0-beta.3",
            "v2.0.0-beta.2",
            "v2.0.0-beta.1",
            "v2.0.0-alpha.9",
            "v2.0.0-alpha.8",
            "v2.0.0-alpha.7",
            "v2.0.0-alpha.6",
            "v2.0.0-alpha.5",
            "v2.0.0-alpha.4",
            "v2.0.0-alpha.3",
            "v2.0.0-alpha.2",
            "v2.0.0-alpha.1",
            "v1.0.0",
            "v1.0.0-beta.12",
            "v1.0.0-beta.11",
            "v1.0.0-beta.10",
            "v1.0.0-beta.9+20230402",
            "v1.0.0-beta.9",
            "v1.0.0-beta.8",
            "v1.0.0-beta.7",
            "v1.0.0-beta.6",
            "v1.0.0-beta.5",
            "v1.0.0-beta.4",
            "v1.0.0-beta.3",
            "v1.0.0-beta.2",
            "v1.0.0-beta.1",
            "v0.3.0",
            "v0.1.30",
            "v0.1.29",
            "v0.1.28",
            "v0.1.27",
            "v0.1.26",
            "v0.1.25",
            "v0.1.24",
            "v0.1.23",
            "v0.1.22",
            "v0.1.21",
            "v0.1.20",
            "v0.1.19",
            "v0.1.18",
            "v0.1.17",
            "v0.1.16",
            "v0.1.15",
            "v0.1.14",
            "v0.1.13",
            "v0.1.12",
            "v0.1.11",
            "v0.1.10",
            "v0.1.9",
            "v0.1.8",
            "v0.1.7",
            "v0.1.6",
            "v0.1.5",
            "v0.1.4",
            "v0.1.3",
            "v0.1.2",
            "v0.1.1",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63762.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.486015002Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63762.json",
        "https://github.com/surrealdb/surrealdb/security/advisories/GHSA-xx7m-69ff-9crp",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-63762",
        "https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-scripting"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63762.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-63762",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487572,
  "published_at": "2026-07-20T12:04:51.673+00:00"
}