{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "532a461d30a6ed4457839f2caf5f30d5abf51a55"
            },
            {
              "fixed": "8c8eb460229733abf061dbad52cae246a8de52a4"
            }
          ],
          "repo": "https://github.com/parse-community/parse-server",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q342-9w2p-57fp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-693"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30938.json"
  },
  "details": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.12 and 9.5.1-alpha.1, the requestKeywordDenylist security control can be bypassed by placing any nested object or array before a prohibited keyword in the request payload. This is caused by a logic bug that stops scanning sibling keys after encountering the first nested value. Any custom requestKeywordDenylist entries configured by the developer are equally by-passable using the same technique. All Parse Server deployments are affected. The requestKeywordDenylist is enabled by default. This vulnerability is fixed in 8.6.12 and 9.5.1-alpha.1. Use a Cloud Code beforeSave trigger to validate incoming data for prohibited keywords across all classes.",
  "id": "CVE-2026-30938",
  "modified": "2026-04-01T23:08:07.992722009Z",
  "published": "2026-03-10T16:34:02.930Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/releases/tag/8.6.12"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/releases/tag/9.5.1-alpha.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30938.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-q342-9w2p-57fp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30938"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Parse Server has denylist `requestKeywordDenylist` keyword scan bypass through nested object placement"
}