Security advisory

{
  "id": "71118b25bd29485321f05cef999342361116e184cbdd064833e3f432a6455c03",
  "url": "https://osv.dev/vulnerability/CVE-2024-21524",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2024-21524",
    "summary": "All versions of the package node-stringbuilder are vulnerable to Out-of-bounds Read due to incorrect memory length calculation, by calling ToBuffer, ToString, or CharAt on a StringBuilder object with a non-empty string value input. It's possible to return previously allocated memory, for example, by providing negative indexes, leading to an Information Disclosure.",
    "evidence": "osv:CVE-2024-21524",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-21524",
      "aliases": [
        "CVE-2024-21524",
        "GHSA-g533-xq5w-jmf3"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/magiclen/node-stringbuilder",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "032697cc3e325148dbced50d561eb332937e32da"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:magiclen:stringbuilder:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.2.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.2.7",
            "v2.2.6",
            "v2.2.5",
            "v2.2.4",
            "v2.2.3",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.1",
            "v2.1.0",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.3.0",
            "v1.1.0",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-21524.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.772218600Z",
      "provider": "osv",
      "references": [
        "https://gist.github.com/dellalibera/0bb022811224f81d998fa61c3175ee67",
        "https://github.com/magiclen/node-stringbuilder/blob/5c2797d3d6bf8cb6d10fe1e077609cef9a5a7de0/src/node-stringbuilder.c%23L1281",
        "https://security.snyk.io/vuln/SNYK-JS-NODESTRINGBUILDER-6421617",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21524.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-21524"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125"
        ],
        "cna_assigner": "snyk",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "*"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21524.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-21524",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521807,
  "published_at": "2024-07-10T05:00:05.257+00:00"
}